396914 432013 Complete Power Head Evinrude Johnson 48hp 1988 on 2040-parts.com

Dinan S3 boosts BMW 550i to M5 levels

Dinan introduced the 2013 BMW 550i S3 on Tuesday. The tuner upgrades the already quick sedan to 542 hp, but claims to retain enough refinement to be a daily driver. The upgrade is also factory backed for four years or 50,000 miles by Dinan's nationwide network of service centers.

Concept Car of the Week: Bizzarrini Manta (1968)

In the latter half of 1965, Giotto Bizzarrini began working on a racing car designed to compete with the Ford GT40, Ferrari 250P and the Porsche 906. The result was the P538, his most sophisticated car to date. The first two examples built were fitted with Lamborghini V12 engines and sold to American buyers to compete in SCCA races, while the third used a highly modified 5.4-liter V8 from the Chevrolet Corvette.

Audi A5 DTM Concept Car (2011) first official sketches

This is Audi’s new DTM racer: as new rules and regulations are ushered in for the 2012 German Touring Car series, Audi has chosen to replace its highly successful A4 DTM with a race car based on the new A5 coupe. And it’s been unveiled just in time to steal a little thunder from BMW as Ingolstadt’s local rival reveals its first DTM challenger in two decades. So the Audi A4 DTM becomes the Audi A5 DTM?