The result of the 997.1 Turbo and the E60 M5 is surprisingly one sided. The 911 Turbo just flat out runs away from it up top. There are multiple runs and the result is the same each time, bus lengths for the Turbo.
So how about some more stout competition for the Posche? A McLaren MP4-12C certainly qualifies as stout. The McLaren features the latest 616 horsepower ECU map from McLaren along with a sport exhaust system. The result? The MP4-12C puts bus lengths on the Porsche 911.
All three of these cars are quick on the highway. It is amazing to see such a large spread between them. There is always somebody faster.
1. E60 M5 (camera car) with ECU, scoops, pulley, removed pre-cats, filters, 245 winter tires vs 997.1TT MT with FVD tune (stock exhaust)
2. 3 more tries - now 997tt is the camera car
3. MP4-12C with factory sport exhaust and latest ecu factory update vs. 997TT (with passenger)