This was my second N54 project.  The goal of this build was to make a daily driven, 500rwhp, reliable, convertible for under $40k.  It also needed to have a back seat for a front facing baby seatI I believe this is the best all around build for the budget.

The Build and final software map were completed November 2014.  2yrs and 30k miles daily driven rock chips to prove it, 1/2mi, hpde, and friday night drags this car has been extremely reliable and track proven!

Here are some numbers as is where is minus the excuses:
12.7 at 114mph
1/2mi 153mph

I am sold that there are no better platforms that check all these boxes!

Next step up in budget would be a 997tt.