Somewhere inside the doors of Renault's development centre in France, there is a sign saying "You dun't 'ave to be mad to work 'ere, but it 'elps".

We can't say this for sure, but there's plenty of evidence to suggest it's the case. It's the only way to explain the company's back-catalogue of ludicrous concepts and production cars. Which now includes this F1-inspired Twizy...

The current Audi TT isn't as heavy as its Brunel-tough styling might imply.

Still, always room for improvement, and Audi's engineers have been hard at work on the TT Ultra Concept, concocted for the Wörthersee show in Germany, a celebration of all things Audi. We have the full details...

Twenty years ago, Renault launched the clever little Twingo. A second-generation, less clever version launched in 2007, and now there's the Twin'Z concept. Could this rear-drive, electric concept turn into the smartest Twingo yet?...

Honda unveil a sportily styled Tourer Concept at Geneva, pointing the way towards the full production version's launch in September.

The company has also hinted that there'll be a range-topping Type R model on the way...

The first major motor show of 2012, the Detroit Auto Show, is fully underway, with plenty of flash new cars and tasty concepts on display. We take a look at the stars of this year’s show.

Jaguar have just released their hugely hyped C-X16 production concept. Take a look at the photos and video and see what we make of it. 

We don’t normally feature concept cars on this blog, but as soon as we saw these photos we had to make an exception. This V12 Zagato is stunning and likely to go into production soon.

We had a lot of fun checking out the diverse array of concept cars displayed at Geneva Motorshow last week. From futuristic to downright bizarre there’s definitely something for everyone. Here are our favourites!

This is the Rinspeed BamBoo, a wacky concept from the eccentric Swiss company. There are a few things we like about it, but the looks aren't one of them!

Porsche this morning unveiled the new 918 RSR. It’s a stunning race car powered by a V8 petrol engine and two electric motors. It’s not for sale though, and there’s no word on whether it will race at all. Porsche are simply calling it a ‘racing laboratory’, which sounds intriguing!