2 diffrent cars way diffrent cars.
The Bmw is more fun mostly because it is a stick and it will go sideways very easy. The 500 Was'nt hard when you took a turn hard and punched the gas the firehawks would slip and slid the rear end a little. The Bmw is a big change in power 121hp compared to 245hp. High Speed in the BMW is no fun it's everywhere on the road unlike the 500. As for relaiblity I can't judge that yet because the bmw is so far beat up and I'm trying to bring it back.