Im confused by Forza ratings

I have been playing forza for a long time now and while playing a few days ago I discovered that I don’t really know what the ratings of cars mean. So for example if a car rates 7.5 is that a rating of how its does compared to other cars in its class, a rating of how fast the car is compared to the fastest cars in the game, or is it how much potential speed the car has like if its at 7.5 does that mean i have 2.5 of speed that could be added by upgrading? Or am I just completely wrong?
Thanks for the help.

1 Like

I took it to be a 1 - 10 scale in each category, the higher the number in that category the better the vehicles performance is in that category, as you upgrade and tune those numbers will change as will the benchmark numbers in the upgrade portion of the shop

To give you an example:

The Speed rating is based on the top speed of the vehicle (given a suitably long straight, etc). This scale goes from 1.0 to 10.0. An 8 may equate to something like 170mph and a 9.0 to 190 mph (just random figures but the idea is the same). There is an exception to this though - 10.0 doesn’t mean it has the highest top speed, it just means that its top speed exceeds the top limit of the rating system (call it 220mph) - any car that can do 220 mph or more will be a 10.0.

The rating are not the entire story - speed can be pointless if there is no handling or launch to go with it. They are just a rough guide to the cars abilities, but do not tell you for sure that one car is better than another.

And no, most cars can’t get a 10.0 in ANY rating, it is just for quick and rough comparison and upgrades will not take every car to a 10.0. The PI system is far more effective for the total ability of a car, and even then there is a limit to how far the car can go and most people don’t upgrade their car with everything possible (it often makes them worse).

1 Like

So the rating is really a rating of 1-10 instead of mph of how fast the car can go for ex. 10 means 220 or higher and 4.0 means 160mph right? Those are just examples I’m not saying that they actually mean 220 or 160 just a random number. So the rating just basically tells you how fast the car is without using mph as the unit?

Yes. The speed rating has nothing to do with MPH, it’s just a rating based on a scale of 1-10. For better info on a cars capabilities, use the benchmark info. Just because a car has mediocre ratings doesn’t mean it isn’t a good car.

Pretty much.

As EZT Mako alluded, using the Benchmark tool will give you a good feel for the scale although I think the scale is actually 3.0 - 10 (not just 10.0, but a flat 10 is > than 10.0 according to my experience). I’ve never seen a value less than 3.0 and if you incrementally raise a value (Speed and Acceleration are the most likely/common) above 9.9, it goes to 10.0 first and then to 10 (no decimal). The values seem to be based upon a concept of the limitations of automobiles in general, so any number of cars can have a 10 Speed, but they can still have different max speeds. Even the same car can have a 10 Speed with or without a rear spoiler, but when you take it out on LeMans to the long front straight, its max speed will differ. Speed and acceleration seem pretty straight forward, as do Launch and Braking (something to do with 0-60/100 & 100/60-0 times it seems), but Handling is a little more vague. It is not strictly lateral G’s, nor is it how fast you can take any particular corner, because I can show that a car with a AWD vs. the same car with RWD, can take a particular corner faster with a lower Handling score and lower lateral G’s…

For a numerical example though, take a car that has a Speed rating of 3.1, check the benchmark to see what its max speed is.
Next, give it a Racing transmission/gearing and use motor/aspiration additions to raise its Speed to 4.1 and return to the benchmark and re-check its max speed. It will have gone up a bit.
Next, try and raise its Speed to 5.1 and re-check the benchmark.
Keep repeating this process by trying engine swaps or anything else that you can to raise its Speed rating and check to see the benchmark impact. The Nissan Fairlady Z Twin-Turbo has a fairly large range that it can move through in FM4 that you could try this out with. Similarly, you could look at some of the Mazda rotary engine cars (RX-7s or RX-8s) and do the Furai engine swap once you’ve run up the rotars et al engine/aspiration parts.

1 Like