I think it's to mitigate the fact that sometimes your opponents can outclass you esp. in the PP restricted races.
FINALLY beat the Lamborghini 550PP challenge after a week of trying. Did all races with the stock Aventador with the exception of the Nurburgring. For that I used the Gallardo with SRF on, plus all the mods and setup that's been suggested, although I added the ECU upgrade and gave the front end more camber. I also increased throttle sensitivity for greater exit speeds. All in all this has been great fun but super aggravating. And I'm now sick of Lamborghini and their ridiculous amounts of understeer and utter lack of poise through any corner. I would have killed at any point for my 458, MP4-12C, or even my modded out M3 CSL. The Aventador is a great drive though, albeit virtual, but does anyone else think that PD just used the same engine sound from the Murcielago?
they understeer like no other huh? lol