These cars, except by the FT-86 concept, doesn´t works for me. I am 99% convinced that gamepad players can´t make up the gaps betwen the gears without a clutch. And no, i didn´t found a gearbox setting able to heal it, nor "that technique of release the throttle in between the shifting" works so well on these cars...
Even stills, i´ve saw some people (wheel users, mostly) getting great results from these cars. In the right hands with the right settings its incredibly fast, specialy considering that this is a car with below 400hp and no turbo option.