My favorite cars of the decade are both Porsche models.
First, and holding a special place in my heart, is the old Grand-Am spec Porsche Cup cars, particularly the more hardcore later generation 997's which had RSR suspension, gearbox, a monstrous PMNA tuned motor, and the audibly pleasing center-positioned, single exhaust pipe.
No doubt this Brumos livery was one of the best to grace the car.
And of course the current 911 RSR has to be the best. In spite of how BoP handicaps GTLM at the moment, and say what you will about flip-flopping the engine and transmission, this is a truly hardcore 911 that deserves the mantle of RSR. No racing Porsche has sounded this good in a long time, the above Grand-Am cars included. This is a beefy, angry, wide, low, and fast vehicle. I only wish we had more of them in IMSA, some GTD tailenders could have a shot at a legitimate "top 10" in GTLM...
Here's the 912 car at Daytona.
Chris