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FastestThings

Cars

Porsche Cayenne Turbo GT

Porsche states 305 km/h for the 2024 model-change Cayenne Turbo GT. Road & Track and Car and Driver print 189 mph, that figure rounded.

Also known as Cayenne Turbo GT
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Top speed

Published as 305 km/hPublished as 305 km/hPublished as 305 km/h

Manufacturer claim for the model-change Cayenne Turbo GT Coupe (659 PS / 650 hp, 2024). Porsche's press kit states 305 km/h. Road & Track and Car and Driver print 189 mph. 305 km/h is 189.5 mph, so 189 and the US page's 190 mph are the same rounding. The earlier Turbo GT's 300 km/h / 186 mph is a different model year and is not stored.

ClaimedPorsche (opens source in a new tab)

In context

  • 2.9× a cheetah's timed top speedSourced · Cheetah, 29 m/s. Sharp 1997, mean of three timed runs over 201.2 m
  • A football field in 1.1 sConstant · American football field, 100 yd (91.44 m)
  • London to New York in 18 h 16 minConstant · London to New York, 5,570 km great-circle

Worked out from the sourced figure above, which stays the ranked number.

This list

Why it's so fast

A car is fast when the force pushing it forward still beats the air, and when the tires and the gearing can use that force. A limiter is a different fact from an unlimited run.

  1. Drag and gearing

    Top speed is the balance point: thrust equals aerodynamic drag. The gearing has to still be pulling when the car gets there, or the engine falls off its power.

  2. What the sources signed

    A manufacturer claim, a magazine test and an electronic governor are not interchangeable. The measurement line says which one this page ranked.

A limited example is the Bugatti Chiron.

This is how the category works. A note written for this entry appears here once it is in the database.

Provenance

Every measurement

Claimed, measured and official figures side by side, each with its source. The ranked figure is marked.

  1. 305km/h190mph84.7m/s165knRanked figure

    Manufacturer claim for the model-change Cayenne Turbo GT Coupe (659 PS / 650 hp, 2024). Porsche's press kit states 305 km/h. Road & Track and Car and Driver print 189 mph. 305 km/h is 189.5 mph, so 189 and the US page's 190 mph are the same rounding. The earlier Turbo GT's 300 km/h / 186 mph is a different model year and is not stored.

    Claimed
    Porsche (opens source in a new tab)

Reference

Specs

Model
2024 Turbo GT Coupe, 659 PS
Layout
All-wheel-drive SUV
Not ranked
2022 car at 300 km/h

Spot a wrong number?

Every report is read by a person, and corrections are dated on the page.