Bentley Flying Spur vs Porsche Cayenne

What's the difference?

In any other super car, it would seem deeply strange, wrong even, to loll (and LOL) in the back seats while a colleague blasts you around a race track at insane speeds, and not just because cars with V12 engines making 575kW and 1000Nm don’t normally have more than two seats.

The Bentley Flying Spur Speed is, of course, no ordinary car, it is a super sedan, a luxe limousine crossed with a rocket ship, and if Sir wants to get to the rooftop helipad in a spectacular hurry, then these are the back seats to be sitting in.

We flew to Japan, and the spectacular setting of the Magarigawa Club, a members-only race track carved out of the rolling hills outside Tokyo at a rumoured cost of $US2 billion, to try the back seats, and the driver’s seat, of the new and very impressive Flying Spur Speed.

The Porsche Cayenne Turbo GT needs a better name. This is the king of Cayennes and quite possibly the ruler of all super SUVs.

Well, the Cayenne Turbo GT is the fastest SUV around the Nurburgring Nordschleife. Not just that, it has such colossal power and torque it'll be side-by-side with a Porsche 911 GT3 RS in a sprint from 0-100km/h. No, a better name for this SUV would be the Cayenne GT3.

Which is perfect for me because I'm at the point in my life where although I love full-on and noisy cars I also have a full-on and noisy family.

We lived with the Cayenne Turbo GT for a week to find out if this super SUV was also a super family car - from practicality to safety.

We're also a family with ridiculously high expectations of luxury SUVs having lived with and tested each of the Cayenne Turbo GT's rivals - from the Lamborghini Urus and Bentley Bentayga to the Aston Martin DBX and Alfa Romeo Stelvio Quadrifoglio.