If you have $500K to spare...
pick up one of these bad boys up and take it to a track nearest you! In case you have no idea what I'm talking about here's a refresher from egmCarTech:
Refresher: Power the Mercedes-Benz SLS AMG GT3 comes from the same 6.3L AMG V8 as the production model making 563-hp with a maximum torque of 479 lb-ft. The racing model is built to comply with the GT3 specifications of the FIA and is designed as a racing sports car for customers competing in sprints and long-distance races. Prices start at €334,000 ($429,526 USD).
Here is 21 minutes of awesomeness of the Mercedes-Benz SLS AMG GT3 on the track!
source: egmCarTech