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

NHTSA investigates Volkswagen Jetta diesel for fuel leak

The National Highway Traffic and Safety Administration opened a preliminary investigation on Aug. 2 into 40,000 copies of the 2011 Volkswagen Jetta TDI. NHTSA received seven complaints stemming from leaks between the fuel line and the fuel injectors.

Planning continues for driverless cars

OFFICIALS in California have been looking to the future as they bid to legislate for the arrival of hi-tech driver-less cars. A law passed in 2012 set a deadline of the end of this year for the state's Department of Motor Vehicles to decide how to legally integrate the so-called autonomous vehicles - which were once the stuff of science fiction but could be commercially available by the end of the decade. The latest talks on the matter among roads officials focused on how the vehicles will record actions so the data can be used to reconstruct an accident in an effort to trace the cause.

Driven: Mazda RX-8

The two most obvious elements of its unusual make-up are its rotary engine and rear-hinged rear doors with integral B-pillars. What became clear during our week with the RX-8 was how these two aspects of its design form the basis of many other unique qualities... Sports coupe and GT coupe The rotary engine of the RX-8 has a very distinct power delivery that is a defining part of the car's character, but it is also a very small lump of metal compared to a similarly powerful conventional reciprocating piston engine, enabling more of the car's overall length to be devoted to cabin space.