Well I'm not sure you'd be able to take Bimmer bud. Maybe the Dodge 100 though. 7 series Bimmer's pull really hard and their gear ratio's are a lot more user friendly lol You might be able to take tha The R/T's 0-60 is around 6-7 seconds depending on traction. G37, pretty sure if you get the traction right and launch first you might be able to squeeze it out. Simple mods like an upgraded exhaust can be had for about $400 and a Vararam Intake for a few hundred as well. Overall will help you open up some extra power and throttle response. Since you have an 11+ there's no tuner available so there's only so much you can do. You really don't have to worry about gears since you have the 4.10's and an LSD, maybe look into an upgraded torque converter to help you launch harder.