I was told last year from tech that it was clarified with Tamiya USA that it's ok to use square packs in the 06 because you don't have to modify the chassis to fit them. But geez, there's a huge difference in power from the latest and greatest shorty or brick packs over the rounded stick packs used in the fwd cars.

I will say Whippler was not running new packs, he had packs that were at least a year or two old. And he made sure with the track that it was legal so no bad on his part. But if I had the option of running the latest brick pack in my 05 I sure as hell would want to!!

I still love mini.. Just not interested in a particular car being better and different venues. For high grip the M06 is definitely better. On med low grip carpet the 05 shines and on asphalt it seems the 03 rocks so.