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

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.

You can make Benz payments on your iPhone

For our young readers, this may seem like nothing. But for the more mature set, here's a new function for your iPhone or iPod Touch--you can make the payment on your Benz. Mercedes-Benz Financial has launched its iPhone app, just three months after launching the pay-from-your-smart-phone project.

2011 Chevrolet Volt faces toughest test--consumers

Scientists, journalists and a slew of other alleged experts have all weighed in on the 2011 Chevrolet Volt, and now the only verdict that truly matters--the public's--will be rendered. General Motors said 6,348 consumers have taken the extended-range car for a spin during a 12-city “Volt Unplugged Tour,” and not surprisingly, GM's reviewers like it. Still, initial feedback does appear to be truly positive.