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

Concept Car of the Week: Oldsmobile Aerotech (1987)

In late 1984, Oldsmobile management had so much confidence in the potential of its new inline four-cylinder engine Quad 4, that a small team was assigned to the creation of the Aerotech, a research vehicle designed to demonstrate the engine's performance by setting a new world speed record. Ed Welburn, then assistant chief designer, was mostly working on the 1988 Cutlass Supreme but his passion for race cars made him the ideal candidate to be handed the assignment by Oldsmobile 2 studio's chief David North. Inspired by Le Mans racers such as the Porsche 917LH and Jim Hall's Chaparrals, he designed a long, flowing car that immediately seduced design director Chuck Jordan and GM management.

One Lap of the Web: Model S carbon footprints, 911 road trips and the Rover 3500

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- It's Tesla Model S owner vs.

CAP call on Renault to include battery in Zoe price – when it would cost £25k

CAP has called on Renault to include the battery cost in the list price of the Renault Zoe EV, otherwise it won’t be able to set residual values. We reported recently on the price of the Renault Zoe EV – which starts at £18k – and were surprised to find that Renault weren’t including battery costs in the purchase price but charging and extra £70-93 a month for leasing them. That leads to a completely misleading headline price for the Zoe and, as used car price experts CAP say, is akin to Ford removing the engine costs from their cars to reduce list price.