Car and Driver on the 2017 Bugatti Chiron

Everything else seems so, well, second-rate… When chasing top-speed honors, horsepower matters. Even so, there are diminishing returns in the fight against the atmosphere at higher speeds. The Chiron’s redesigned 8.0-liter quad-turbocharged W-16 engine produces 1500 horsepower, 300 more than the outgoing Veyron Super Sport—and yet it tacks only another 3 mph onto that car’s top speed, and only eight more atop the 1001-hp Veyron 16.4’s 253-mph max.

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