Cars - List of Hitbox/Clipping Issues with 20+ Vehicles

I have decided to compile this Report all into one Mega-Post as they all share similar problems relating to a difference in their Hitboxes and Visual Models.

If the Forum Staff would like me to separate this into 21 Different Posts then I can do so when I have the opportunity.


Most Videos courtesy of Saenu, Discord Video Host Links are used as they’re easier to work with compared to uploading 21 individual clips.

These issues have been noticed on the following platforms:

Xbox One S
Xbox Series S
Xbox Series X
PC (Microsoft Store)
PC (Steam)

There is currently a large selection of Vehicles ingame (primarily new ones) that have some oddities in their Hitboxes which extend past the Visual Model.

These often result in Dirtied Laps in Rivals or Slowdowns in Horizon Open as part of the vehicle which you cannot see is having an impact on the terrain or world objects.

Some of these Hitboxes are primarily around the lower half of the vehicle where you’re most likely to notice it by the Wheels upon landing or attempting to climb over terrain but some also have those hitboxes extend higher to the sides where they can hit walls and the like when driving past.

This is not related to Tuning at all and is present in the Cars when Stock, when Upgraded + Untuned and when Upgraded + Tuned Properly for Off-road

No Tuning Settings related to the Suspension, Damping/Bump or Ride Height have managed to fix any of these issues unfortunately and at best have only been able to mitigate them very slightly on certain cars.

I’m unsure if the switch to a new modelling company for PGG/T10 and the subsequent unfamiliarity is to blame or if that is just a really unfortunate coincidence. The fact that multiple new vehicles which are supposed to be the highlights of each update are some of the worst affected though suggests something has changed compared to carryover content and content from last year.

All the Videos below are using a Curb on the bridge just before the Volcan Sprint Start as it’s been found to be a pretty good place to show what happens with the cars in a clear manner. The effects can be replicated in a variety of other places however and most notably in Guanajuato where there are significant elevation changes and multiple curbs all over the city.

For Reference

Here is the completely fine 2017 RAM 2500 Power Wagon as a Benchmark for what should happen:

https://media.discordapp.net/attachments/1118472604412542996/1119088317603000340/2023-06-16_02-46-35.mp4

Notice as it smoothly mounts the Curb and drives on without slowing down.

And for completely fine Cars we have the 2019 Brabham BT62, 2017 Mercedes-AMG GT-R and the 2003 Nissan Fairlady Z:

https://media.discordapp.net/attachments/913934503314075688/1122973848904667136/Replay_2023-06-24_03-37-39.mp4

https://media.discordapp.net/attachments/913934503314075688/1122973850708226219/Replay_2023-06-24_03-21-02.mp4

https://media.discordapp.net/attachments/913934503314075688/1122973852234944532/Replay_2023-06-24_03-20-11.mp4

Despite the significantly lower Ride Height than the Ram and Stiffer Suspension they’re all able to navigate the Curb well. We will also see these cars handle this Bump much better than some Off-roaders below.

Cars with the Bug

Cars that are unfortunately affected in a major Way with the Bug are as follows:

• 2021 Alumi Craft #122 Class 1 Buggy

https://media.discordapp.net/attachments/1118472604412542996/1122453450198884392/Replay_2023-06-25_10-01-00.mp4

Notice how this has a very big slowdown and stutter before continuing despite the Suspension Travel.

• 2019 Casey Currie Motorsports #4402 Ultra 4 ‘Trophy Jeep’

https://media.discordapp.net/attachments/1118472604412542996/1122453452606414888/Replay_2023-06-25_09-59-22.mp4

Another violent reaction to meeting the Curb and almost coming to a Stop.

• 2019 DeBerti Ford Super Duty F-250 Lariat ‘Transformer’

https://media.discordapp.net/attachments/1118472604412542996/1122453453453676564/Replay_2023-06-25_09-51-27.mp4

Notice how this one has a shudder and a slowdown as it mounts the Curb before it continues forward.

• 2022 Extreme E (all of them)

Not as significant as the others but there’s a noticeable shudder when mounting the curb and the rear in particular causes it to slow down quite a bit.

• 2017 Ford #25 ‘Brocky’ Ultra4 Bronco RTR

https://media.discordapp.net/attachments/1118472604412542996/1122453451335532614/Replay_2023-06-25_10-00-22.mp4

This one has a significant slowdown once it hits the Curb before continuing forward.

• 2021 Forsberg Racing Nissan ‘Altimaniac’

https://media.discordapp.net/attachments/1118472604412542996/1121986396098396261/Replay_2023-06-24_03-12-51.mp4

Despite having a similar ride height to the Cars like the BT62 I showed at the Start this one experiences much more of a violent reaction when hitting the Curb and almost comes to a complete stop.

• 2022 GMC Hummer EV + Barbie Edition

https://media.discordapp.net/attachments/1118472604412542996/1119088316751564821/2023-06-16_02-43-58.mp4

https://media.discordapp.net/attachments/1118472604412542996/1122889983561322566/Replay_2023-06-26_15-02-40.mp4

Notice how it judders when it reaches the Curb and then gets pushed back and to the right a bit.

• 2015 Honda Ridgeline Baja Trophy Truck

https://media.discordapp.net/attachments/1118472604412542996/1122461020141654036/Replay_2023-06-25_10-37-25.mp4

This one doesn’t get stopped but instead it gets thrown into the Air like a Bouncy Tune has been applied directly to the front wheel.

• 1973 Hoonigan Volkswagen Baja Beetle Class 5/1600 ‘Scumbug’

https://media.discordapp.net/attachments/1118472604412542996/1122457516001992725/Replay_2023-06-25_10-24-52.mp4

This is another one that gets almost completely stopped when it hits the Curb.

• 2013 Hot Wheels Baja Bone Shaker

https://media.discordapp.net/attachments/1118472604412542996/1122472995844272148/Replay_2023-06-25_11-24-41.mp4

This is one of the more interesting ones as the Front gets kicked up while the Rear almost brings it to a halt.

• 2019 Jimco #240 Fastball Racing Spec Trophy Truck

https://media.discordapp.net/attachments/1118472604412542996/1122461023123812463/Replay_2023-06-25_10-34-57.mp4

This one receives a massive slowdown even after the Railings are removed.

• 2020 Jimco #179 Hammerhead Class 1

https://media.discordapp.net/attachments/1118472604412542996/1122461021538365450/Replay_2023-06-25_10-35-59.mp4

This is the most subtle one but it shudders a small amount as it mounts the Curb.

• 2021 Polaris RZR Pro XP Factory Racing Limited Edition

https://media.discordapp.net/attachments/1118472604412542996/1122453455555010610/Replay_2023-06-25_10-02-46.mp4

This one almost does a flip after hitting the Curb.

• 2021 Polaris RZR Pro XP Ultimate

https://media.discordapp.net/attachments/1118472604412542996/1122453454292516974/Replay_2023-06-25_10-05-15.mp4

This one has issues towards the rear of the vehicle where it seems to prematurely bottom out.

• 2020 Saleen Sportruck XR Black Label

https://media.discordapp.net/attachments/1118472604412542996/1121198896119554048/2023-06-21_23-01-54.mp4

This one basically comes to a complete stop when the rear section reaches the Curb.

• 2021 SIERRA Cars 700R

https://media.discordapp.net/attachments/1118472604412542996/1122472994531459082/Replay_2023-06-25_11-23-33.mp4

This one also nearly does a flip when it hits the Curb as well as slows down massively.

• 2021 SIERRA Cars RX3

https://media.discordapp.net/attachments/1118472604412542996/1122472993331884072/Replay_2023-06-25_11-24-06.mp4

This one comes to a stop almost when hitting the Curb.

• 1995 Toyota MR2 GT

https://media.discordapp.net/attachments/913934503314075688/1123022040128028712/Replay_2023-06-26_23-48-20.mp4

This one also has a very violent reaction and comes to a stop on the second try.

These 3 have been fixed with the Series 23 Update but I’m keeping them here as a record

• 2021 Mercedes-AMG GT Black Series

https://media.discordapp.net/attachments/1118472604412542996/1121982778892886067/Replay_2023-06-24_02-56-32.mp4

• 2003 Nissan Donut Media 350Z “Hi Car”

https://media.discordapp.net/attachments/1118472604412542996/1121982776439218197/Replay_2023-06-24_02-54-24.mp4

• 2004 Nissan Donut Media 350Z “Low Car”

https://media.discordapp.net/attachments/1118472604412542996/1121982778091782214/Replay_2023-06-24_02-55-26.mp4

Look at the HW Mustang too, that car had some interesting reactions to curbs during one of the updates that broke physics

5 Likes

Thanks, I’ll give that one a look soon

2 Likes

Deberti F150 and all of Extreme E too if you’re interested

4 Likes

Thanks, I’ll check those as well

3 Likes

Apparently one of the reasons this is happening is because the new Vehicles have Collision applied to their Wheels while none of the older vehicles do.

This makes me wonder if someone has accidentally tried to import a part of the new Motorsport Tire Model into Horizon for these new cars but it’s just causes issues due to the terrain variances.

If the tires do indeed have brand new collisions and this was an intentional change it really needs to be adjusted because it’s not working in the slightest.

4 Likes

I’ve just tested it and in stock form I didn’t really notice anything atleast on the same part of the bridge as the others.

If you’re able to get a Clip of it acting out then I’d appreciate it

2 Likes

I’ve added the Extreme E’s but I didn’t notice anything major with the DeBerti F-150, there’s a bit of vibration as it mounts the Curb but nothing unusual

2 Likes

I’ve done some testing on this a little while ago, for some reason all of these cars have hitboxes on their wheels which makes them react very differently to some terrain, and they’ll even be able to get traction on walls and other surfaces that normal cars can’t

This exocet clip is how most cars will act, they will simply crash into the wall and slide along it. There’s a hitbox around the car and the wheels can’t get traction on the wall. The wheels don’t have any collision, instead there’s a big hitbox around the car.

But in the Saleen and Sierra clips, the wheel rubbing against the wall has traction because the wheel has its own separate hitbox. These cars definitely act a lot differently than most other cars

My guess of what’s happening in the clips you posted in your original post is that the wheels are colliding with the curb, causing the car to come to a complete stop

4 Likes

Thank you very much Carver <3

2 Likes

2 of these cars are projected to be fixed with the Series 23 Update:

• Nissan 350Z Donut Media Hi Car
• Nissan 350Z Donut Media Low Car
• Mercedes-AMG Black Series

Hopefully we see more fixes in the future for the other models too

2 Likes

Thanks @KillerSpectre21 for amazing effort in documenting this bug that make some vehicles less appealing to use due to loss of skill chains.

2 Likes

You’re welcome, thankfully I had a good bit of assistance from Saeenu and now from AMS Carver above to make it easier :slight_smile:

2 Likes

@KillerSpectre21 and others, could you provide an updated list of the models that still seem to have clipping issues? Some of these may have been resolved by a broader fix.

1 Like

:eyes:

I’ll have to take a look over these ones when I’m free.

I haven’t noticed it in any of the cars added since I made this though so the issue seems to have been fixed with regards to the newer additions.

I’ve also sent you a message on Discord regarding something I wanted to know if you’d like me to make a list of for you. I can probably do that and this at the same time if you’d like.

1 Like

Sorry for such a long delay but I’ve gone through and checked all of the ones I listed and put them into 4 categories:

Still Affected: Are still having very similar reactions to originally reported.

Slightly Improved: It’s not completely fixed but the reactions are much less violent than originally reported although a heavy slowdown is still present.

Noticeably Improved: Slowdown is significantly less intense or is almost completely gone.

Fixed: I consider these vehicles complety fixed or as good as you’re going to get.


Still Affected

• Alumicraft Class 1 Buggy

• Casey Currie Ultra4 Jeep

• Extreme Es

• Hummer EV

• Polaris RZR Ultimate

• Toyota MR2 '95


Slightly Improved

• Ford Brocky

• Honda Ridgeline

• Hoonigan Scumbug

• Hot Wheels Baja Boneshaker

• Saleen Sportruck


Noticeably Improved

• DeBerti F-250 Transformer

• Polaris RZR Factory Racing

• Sierra 700R

• Sierra RX3

Fixed

• Forsberg Racing Altimaniac

• Jimco Fastball Trophy Truck

• Jimco Hammerhead Class 1 Buggy

1 Like

We appreciate you opening this topic and sharing feedback. For us to be able to more effectively address your concerns, we ask that you open up threads for single specific issues, and try to avoid “grouping” several issues into one. This way, we’ll be able to better understand and convey a particular issue to our product team, and open and track bugs internally to monitor progress towards resolution. As a result, we will close this thread, but please open individual topics on issues you notice with the game. Thank you!

In the case of car reports please try to report one issue per car in your thread.

1 Like