The company basically binned the car's stock high-output 2.0-liter biturbo-based hybrid powertrain—battery pack and all—and swapped in an older version of Mercedes-AMG's latest 4.0-liter twin-turbo ...
We take our Mini F56 Cooper S for an initial test, put it on the dyno, and unlock more power with an ECU Stage 1 tune! How ...
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