Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Equus Bass 770: America’s all-new muscle car

What you’re looking at here is quite possibly the ultimate ‘pony car’ – a brand-new slab of American muscle heavily tinged with retro flair, six years in the making. It’s called the Equus Bass 770, it’s powered by a 640hp 6.2-litre suprecahrged V8, and you can buy one priced from $253,000. Which is around £157,000.

Tesla system will swap a Model S battery in 90 seconds

"This is the title fight," said Elon Musk, in typical brashness. "This is battery-powered versus gasoline." The Tesla CEO preached this to a crowd of Tesla owners and supporters while formally confirming the company's worst-kept secret: the fact that the Model S sedan's batteries were designed from the beginning to be swapped out. The system Tesla envisioned has plenty of ambitious, techno-wizardry automation, with a focus on as much convenience as possible: The Model S will drive over a pit containing machinery which automatically changes the battery from underneath in approximately 90 seconds -- and the driver doesn't even have to get out of the car.

Pagani Huayra in Purple with Tricolour Calipers (video)

We have video of what looks like a new build Pagani Huayra, still plastic wrapped, in purple with Italian Tricolour brake calipers. That’s because the Pagani Huayra has not, as far as we can tell, managed to get a European Certificate of Conformity or managed to be Federalised for the US, so sales are impossible. But Pagani are still producing a few cars – although they’ve probably built more Zondas in the last two years than Huayras – but it looks like this Huayra – caught on video outside Pagaini’s premises in Modena – is a new build.