As usual to get a car that approximates the performance of a $15K bike you have to spend about $150K.
Car and Driver did a several point comparo between a YZ1000 and a Viper back in the 90s. The Viper got the edge on a mountain road and slightly edged the YZ at Riverside raceway. The Yammer naturally humiliated the Viper at the drag strip. Unfortunately they weren't able to finish the comparo because the Viper blew a head gasket after 3 laps at Riverside and its brakes were nearly toast. Naturally C&D named the Viper the winner. Heh heh.
I wonder how well the Audi's brakes would hold up to continuous punishment. Probably pretty well with the $150K price tag. That's one area that bike have over most sedans. The brakes will take a licking and keep on ticking while the $30-40K sedans' brakes fry.