Lingenfelter cars really are insane. I've done over 200MPH on local highways and its craaaaazy.
The BMW is a sedan, 335xi with M package. Then sent it out for some tweaking at some aftermarket tuner here to get it to just a tad under 430HP. Just right in the range of an M3 but not too insane as that gets driven more often.
That's the combo I am leaning towards. I'd love a true M, but that's just the kid in me always wanting one. The responsible father/husband in me knows that I'd just be spending money to satisfy a selfish desire, and hey...that's what Oakley is for.