The other day I saw an MB E430 in traffic; the trunklid had the following badges: "E430" on the left, "AMG" on the right with "RENNTech" underneath it. (AMG is the in-house MB tuner and RENNTech is an aftermarket MB tuner in Florida.) IIRC, AMG-tuned cars drop the zero from the model badge: in this case, it should have been "E43" with the "AMG" badge.
1. Did this guy just put the tuner badges on his stock E430?
2. If legit, what would RENNTech have contributed to an AMG-tuned car?
Thanks for any insight.