Vintage American Racing Wheel 14x6 For Wire Setup on 2040-parts.com

Running flat out: BMW is a leader in pushing run-flat tires

BMW is getting ready to launch its next-generation compact SUV, the X3, and it will ride--as most BMWs and Minis sold today--on run-flat tires. Of all the companies producing cars today, BWM has embraced run-flat technology like no other. Chevrolet with the Corvette, and some Lexus models, among others, use run-flats in certain applications.

Renault Twin'Run concept

The Renault Twin'Run concept, unveiled during the weekend's Monaco Grand Prix, is the sibling of the Twin'Z collaboration with Ross Lovegrove. Together they fulfill the ‘Play' stage of Renault's ongoing concept car lifecycle. While its overall form is very similar to the Twin'Z's (apologies for awkward punctuation on Renault's behalf), previewing the next-generation, rear-engined Twingo, the ‘Run is altogether racier than the more pragmatic – if no less flamboyant – ‘Z.

Concept Car of the Week: Lancia Bertone Sibilo (1978)

The second half of the ‘70s saw automotive design fall into an era of uninspired and uninspiring economic cars finished with cheap plastic add-ons and stuffed with beige itchy fabrics. Working from the little Bertone studio in Turin, it seems Marcello Gandini didn't get the memo and carried on drawing futuristic wedgey supercars. With the Sibilo, he pushed his signature angular style to a new level of modernity.