Mercedes W107 Left Door Lock Linkage Rod 450sl on 2040-parts.com

Porsche is developing a new four-cylinder engine set to power entry-level model

High-ranking officials at Porsche's Weissach research and development center in Germany have confirmed that engineering work is progressing on a four-cylinder horizontally opposed gasoline engine, details of which were first revealed by Autoweek earlier this year. The new boxer unit--which is earmarked to power a new mid-engine, entry-level model that insiders describe as a spiritual successor to the iconic 550 Spyder--looks set to become an integral part of Porsche's future model plans. Insiders suggest it will also be offered on the third-generation Boxster and the second-generation Cayman later on in their respective model cycles.

Faster Cat: Arden tunes the Jaguar XKR 75

Jaguar celebrated its 75th anniversary with a number of special models, including the fleet-footed XKR 75. And a British tuner is goosing this lithe coupe even more. Arden boosts output to 580 hp and 531 lb-ft of twist, while bolting on a high-performance exhaust system and sport catalysts.

Infiniti M launches at Pebble Beach

Infiniti has 'Virtually' revelead the new Infiniti M at Pebble Beach Anyway, odd launch or not, this is a big deal for Infiniti. And – for the first time – the UK and Europe will also be getting the Infiniti M, which is Infiniti’s Flagship model, aimed at the Lexus LS and – I suppose – the S Class, 7 Series and XJ, although it is slightly smaller. As we noted from the teased silhouette we saw recently, the Infiniti M seems to take a chunk of its design cues from the Infiniti Essence Coupe, which actually kicked off the Pebble Beach event a couple of days ago.