R-134a Auto Air Conditioner Recharge Kit on 2040-parts.com

Watch: XCar tests the Pagani Huarya

Huayra means “god of the winds” in the Quechua language, hence the word's attachment to the 230 mph Pagani hypercar that debuted in 2012 with a price of $1.3 million. British outfit XCar took the company's latest to the streets for the full shakedown. XCar starts with a little history on the company before going into the trick aero bits that stay hidden when you want to go fast, and appear when you want to take a corner.

McLaren 12C Spider: Official

After a tease last week McLaren Automotive has revealed the convertible MP4-12C – the McLaren 12C Spider. We did think there was a chance McLaren would try to steal Ferrari’s thunder by revealing the convertible version of the MP4-12C at Goodwood this last weekend, but they didn’t. But today the McLaren 12C Spider (not the MP4-12C Spider) is officially revealed, and by the look of it no one will be buying the MP4-12C any more.

Nissan mobility concept (2010): it's Nissan's Twizy

You'd be forgiven for thinking we'd mistitled a story about the Renault Twizy. It's not - take another look and you'll spot important differences. Like a Nissan badge.