On paper, 25 horsepower doesn’t sound like a major upgrade, especially for a 675PS (666hp) supercar like the McLaren 675LT. But, as Chris Harris found out during a first drive on the Silverstone circuit, there’s a lot more to the limited-edition McLaren than the power advantage it has on the 650S.

The 675LT is also 100kg (220lbs) lighter than the car it’s based on, allowing it to claim the best power-to-weight ratio in its class, at 541hp per ton.

This explains why Harris says the 675LT is faster than most racing cars he’s ever driven. Or why he says it feels like a baby McLaren P1 to drive, which probably is the best compliment the 675LT can get.

No wonder McLaren has alreadly sold all 500 of them. Scroll down to watch the track-exclusive review.

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