I'd take the AMG one with a V8 Biturbo cranking out 577HP. I'd gladly get the owner drunk and trade it for my 91 Vette since I can't push more than 420 RWHP. Give it a few years and someone will find a way to crank out even more power.

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow