Very interesting - thanks for doing that, Pete. That clearly shows that retrofitting larger turbos that would give the 1M better lungs at high revs would really give the little 1er an edge over the 3er (and is most likely the reason the factory did not do that, aside from cost).
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1973 Porsche Carrera RS 2.7 Carbon Fiber (240hp & 1,890 lbs)
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