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

GM SUVs probed by NHTSA after reports of stalling

Federal regulators have opened a safety investigation of as many as 865,000 General Motors SUVs from 2005-07 model years after complaints that inaccurate fuel-gauge readings led to stalling and one accident. The National Highway Traffic Safety Administration's preliminary evaluation is looking at 2005-07 Buick Rainiers, 2005-07 Chevrolet TrailBlazer 360s, 2005-06 Chevrolet TrailBlazer EXT 370s, 2005-07 GMC Envoy 360s, 2005-06 GMC Envoy XL 370s and 2005-07 Saab 9-7Xs. NHTSA said in a posting Friday that it has received 668 complaints of inaccurate fuel-gauge readings, 58 of which involved stalling vehicles.

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.

Hamilton targets winning streak

LEWIS HAMILTON knows he needs another run of four successive victories if he is to overhaul team-mate Nico Rosberg in the race for this year's Formula One world title. It is a feat Hamilton managed earlier this campaign after Mercedes rival Rosberg won the season-opening grand prix in Australia where the Briton retired. Hamilton then triumphed in Malaysia, Bahrain, China and Spain, clawing back the 25-point deficit, with Rosberg forced to settle for the runner-up spot on each occasion.