If there's one thing the stock McLaren MP4-12C has in abundance it's power from the mid-mounted 3.8-liter twin-turbocharged V8 engine which is rated at 600PS (592HP) and 600Nm (442.5 lb-ft).
However, Texas-based tuning firm Hennessey Performance begs to differ as it believes the MP4-12C could do with some additional horses under the hood – 200 of them, to be precise.
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