Harley Davidson Aermacchi Rubber Muffler Mount 65279-74p on 2040-parts.com

One Lap of the Web: Kyle Busch takes to the streets, a new Mazdaspeed3 and the Crazy Cart

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- When you let a NASCAR driver take his souped-up track car on local streets, you can be sure that what will happen is nothing short of incredible.

Vauxhall Astra & Astra Sports Tourer get BiTurbo diesel

Vauxhall has decided to bolt their BiTurbo diesel engine in to the Astra Hatch and the Astra Sports Tourer. Vauxhall revealed last month that the Astra GTC was getting the frugal but lively 2.0 litre CDTi BiTurbo engine, offering a tempting combination of 53mpg official economy and sub 8 second 0-62mph performance. With levels of economy unthinkable just a few years ago combined with performance a hot hatch would have been proud of, the BiTurbo Astra GTC is a clever combination.

Jaguar C-X75 at Berkeley Boutique +video

Jaguar C-X75 is on show at the Berkeley Boutique It’s easy to get a bit carried away when writing a headline. Perhaps not to the degree of xenophobic alliteration so beloved of our red-tops, but carried away with the moment nonetheless. But the range of headlines surrounding the Jaguar C-X75 Concept when it turned up at Paris in September where all in the same vein – the Jaguar C-X75 stole the show – and they were no exaggeration.