The latest Porsche 911 Turbo S is one of the fastest road cars that money can buy.
It has 552bhp and 516lb ft of torque, puts its power all over the road courtesy of a complex four-wheel drive system and can, as a result, cover ground more efficiently than almost any other road car on earth. And it costs £140,852.
For less than a third of that, however, you could arm yourself with a device that could lap any circuit in Britain much faster than a 911 Turbo S. And for half of that again, you could pay to enter said device into a bona fide racing championship and find out if you have what it takes to become the next Lewis Hamilton.
Or, more realistically, find out if your son or daughter has what it takes to become the next you-know-who.
But even if you just fancied running a Formula 4 car at track days every now and then, you’ve got to admit that £45k for a fully tooled-up single-seater that could run rings around anything else that turned up is, in all sorts of ways, a mouth-watering prospect.
But how fast, ultimately, can a single-seater like the new F4 machine be when it has but a mere 185bhp from a 2.0-litre Ford Duratec engine? Fair enough, the spaceframe chassis and part-carbonfibre safety cell of the F4 car mean that it weighs little more than a cup of tea, but surely it can’t compete with the pure grunt of the Porsche on the straight bits of the average circuit?
And even if the F4 can stop rather well, courtesy of its AP Racing brakes, and changes gear instantly, thanks to its trick new Sadev six-speed paddle-shift gearbox, the PDK-equipped 911 Turbo S also has a reputation for being able to swap cogs faster than you can think. It’s quite good at slowing down, too.