Harley Davidson Sportster Evolution, 1991-1994: Clymer Workshop Manual M429 on 2040-parts.com

Aston Martin adds a V8 Vantage S

Slotted between Aston Martin's vaunted V8 Vantage and the venerable V12 variant comes a tweener model that promises to be anything but vague: Aston is adding the S variant, with more power and an upgraded transmission. The Vantage S draws power from the 4.7-liter V8 making 430 hp, 10 hp more than in the base Vantage. The S also adds 15 lb-ft of torque, boosting total twist to 361 lb-ft.

Aston Martin Vantage GT2 (2008): first official pictures

By Ben Pulman First Official Pictures 31 March 2008 11:03 Aston Martin Racing has officially unveiled the Vantage GT2. Its 4.3-litre V8 produces 500bhp and the Vantage GT2 weighs a mere 1200kg. That means it'll be quick, and it needs to be. The Vantage will have the unenviable task of taking on Porsche and Ferrari in the most competitive endurance racing class, GT2. The price?

Pagani Zonda R Evo revealed ahead of Goodwood FoS Debut (video)

Pagani appears ready to reveal an ‘Evo’ upgrade for the track only Zonda R at the Goodwood Festival of Speed 2012. If you thought the ‘launch’ of the Pagani Huayra meant the end of the Pagani Zonda, you’d be mistake. The Huayra is fraught with ongoing problems for Pagani – most of them legislative – which means very few have found their way in to the wild (perhaps, and only perhaps, just one customer car is in existence).