Competition among the Mercedes-Benz specialists was again hotly contested, with Tuner GP regulars Hirsch and Vath setting the pace in Class C3-B. Mario Hirsch drove his 550hp C63 AMG sedan to a class win with a 1:11.648 average during his allotted laps. Second place went to Klaus Panchyrz in the Vath C63 AMG Black Series: mildly tuned to 560hp and with fully adjustable KW coilovers, he set a 1:13.484 average.

Väth’s second car in the class was a C63 AMG equipped with a Weistec supercharger conversion, Väth widebody and the same KW suspension. Its third entry was a venerable 190E 2.3-16 that featured in the “Youngtimer” class C16 in the previous two TGP events. With a healthy 288hp thanks to an original 2.5-16 Evo 2 air box, it was visibly quicker than before, but not as rapid as MTM’s ex-DTM Audi V8, which romped away from the other contestants in this class.

But it was the 670hp McLaren MP4-12C from Motoren-Technik-Mayer (MTM) that dominated the supercar class C15 Supersportler. Driven by Florian Gruber, it set a time of 1min 08.979sec, which was considerably quicker than the VOS McLaren, Hohenester Gumpert Apollo and VOS Lamborghini Murcielago in the same class.

Thanks to this year’s return to form, with the Tuner GP rule book addressing the uncertainly created last year, 2012 had the crowd cheering for their favourite cars, tuners and drivers thanks to some extremely close competition.

We’ll return to the Hockenheimring next year to see if more modifications to the McLaren MP4-12C can dethrone the KTM X-Bow, or whether there will be a new challenger like the Lamborghini Aventador to take its place.

The street-legal Hohenester KTM X-Bow set fastest time of the event with a 1:5.737 average lap

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