Acdelco 15-50419 Heater Valve on 2040-parts.com

Video: How DGT Architects created Renault's Paris show stand

The creators of the Renault stand at this year's Paris motor show have released a video explaining how they created one of the most popular show stands in recent years. The DGT Architects-designed Renault stand – named ‘The Bump' – was one of the stars of the show this year with its curves and lighting drawing praise and attracting admirers from across the event.  A total of 388 large squashed light globes that softly glowed a variety of colors were hung from the ceiling and simulated the movements of waves as they illuminated the stand below. To convey a sense of motion to the cars underneath, DGT used the movement of the lights and the creation of two hills.

Lotus offers Final Edition models of the Exige and the Elise

It's the end of the line for the Lotus Exige and Elise models in North America. To celebrate, Lotus has created Final Editions for the Elise SC, the Exige and the Exige S260. The lack of availability of Toyota's 1.8-liter 2ZZ is partly responsible for the cancellation.

Alfa Romeo 4C Spider revealed: Geneva Motor Show

The Alfa Romeo 4C Spider (pictured) revealed in Geneva The Alfa Romeo 4C is the epitome of a modern ‘supercar’, with ultra light weight (for a production car) allowing the 4C to produce very good performance from its modest 17500cc engine. So producing an Spider convertible immediately raises the weight issue in a more dramatic way when the car’s abilities are so dependent on it low weight, but it seems the Alfa Romeo 4C Spider – previewed as a production car with a concept at Geneva today – has managed to keep the wight penalties of the convertible 4C down to a minimum. Thanks to a canvas roof and carbon fibre rollover bars, the weight penalty for the Spider is only about 60kg (around a 7 per cent gain) which shouldn’t hurt performance too much.