The 2009 Mercedes Benz SL65 AMG is one of the very best looking Mercs ever made. It’s a stunning car in person and it is such a shame that the car model in FORZA is extremely inaccurate.
The car model, which is still in use in FH5, is disproportionate, inaccurate and outdated. This can be observed when exam on the car’s height, size and proportions - especially the front end, front and rear fenders, and rear end.
The car is larger and unusually squared off compared to the real life car, which is very curvy, sleek and low-slung, and the rear end is unbelievably bad. (Notice the height, wheel arches, front and rear end)
The Mercedes Benz SL65 Black is one of the worst car models to be ported from FM3, and this car desperately needs to be fully rescanned and remodeled for the next title.
I highly recommend you creating a separate post under FM Troubleshooting to highlight the mismatched speedometer calculation between the in game and in-vehicle speedometers. This is an FM-specific bug and needs to be reported as such.
