Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Autoweek in review: What you might have missed

The automotive racing world lost yet another character this week with the passing of “Big” Willie Robinson. He was 70 years old. May marks the 40-year anniversary of the BMW M division.

The next McLaren supercar will be called the 650S

We've known that McLaren has a pair of additional models in the works, including a Porsche 911-fighting, 12C-based sports car known only as the P13 and another car positioned between the 12C and the P1. Previously, we'd heard the code name “P15” tossed around in reference to that latter car, but McLaren has officially christened it the 650S ahead of its world debut at the upcoming Geneva motor show. According to the automaker, the 650S “takes learnings from both the 12C as well as the sell-out McLaren P1 [ed note: there has to be a better way to say that] and will be positioned between the two on McLaren Automotive's supercar grid.“ We liked the 12C, and we really, really liked the P1.

Aston unveils new Vantage racer

By Digby Fullam First Official Pictures 17 November 2008 14:15 Aston Martin’s Vantage N24 has given way to this new GT4 – a race-spec Vantage aimed at pro racers and track day enthusiasts alike. The arrival of the GT4 leaves Aston in the unique position of being the only manufacturer producing cars in each GT class. The new car has been six months in development, with Aston hopeful that it will build on the success of the N24, winner of this year’s Nurburgring 24 Hours.