boytronic:
Boxster Coupe GTS:
"The Mezger engine lives on! New 991 RSR and 991 Cup car will use the classic water-cooled, non-DFI motor."

-- Chris Harris (@harrismonkey)

Does this mean the Mezger will have to be homologated in at least the road 991 RS if not the normal GT3?

There were some thoughts to use the GT3 RS for homologation but I'm not sure if this is viable, cost-wise. This would mean that the RS gets a Mezger derived type of engine and the GT3 doesn't. Let's see how this is going to play out for Porsche. In my opinion, this could threaten GT3 sales but on the other hand Porsche could make it interesting by putting a 30k price difference between the GT3 and the GT3 RS, which could probably work.

The easiest way for Porsche: They build the GT3 and GT3 RS with DFI engines and a necessary amount of homologation vehicles with different engines. Not sure about the current rules though.

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RC (Germany) - Rennteam Editor Porsche Panamera Turbo S, BMW X5M, Mercedes C63 AMG Coupe PP/DP, Mini Cooper S Countryman All4