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

One Lap of the Web: Peugeot climbs, an extremist sinks and a proposed $1,500 race car

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. -- Peugeot has prepped a Pikes Peak 208, and the folks at Gizmag take an in-depth look at the car.

Audi RS5 TDI Concept gets electric turbo and 380bhp

The Audi RS5 TDI Concept (pictured) gets an electric turbo It’s two years since Audi revealed it was working on an electric turbo to be used in a twin-turbo setup, with the electric turbo able to offer boost pressure from much lower down the rev range than a normal turbo. That has turned in to the Audi RS5 TDI Concept, where Audi has replaced the normal RS5‘s V8 with a 3.0 litre TDI engine with a small electric turbo for low rev work and a bigger turbo to do the higher rev stuff. The electric turbo works from the off to provide maximum torque of 553lb/ft from just 1250rpm, before the bigger normal turbo takes over at 3,000rpm to continue the boost.

No M4 relief road 'before 2020'

A "RELIEF ROAD" for the M4 in south Wales is unlikely to be constructed before 2020, a leading transport expert has told Welsh Assembly Members. A new stretch of motorway south of Newport could be back on the cards after the UK ministers announced the possibility of Welsh Government borrowing the money needed for the scheme. However the re-emergence of proposals to ease traffic on Wales' heavily congested western gateway prompted fierce debate during a committee hearing in the Senedd.