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

Geneva Show 2014: Hot Audi S1 arrives

ONE OF THE smallest cars on the Audi stand at the Geneva Motor Show was also grabbing the most attention, as the German firm unveiled the new S1. Based on the A1, the smallest Audi in the range, the S1 also takes inspiration from the strictly limited edition A1 Quattro that appeared in 2012. Packing a turbocharged 2.0-litre engine under its compact bonnet it is comfortably the fastest A1 in production, with a top speed limited to 155mph and 0-62mph taking 5.8 seconds.

Vehicle emissions are down and fuel economy is up, EPA reports

The Environmental Protection Agency released its emissions and fuel-economy report for 2010. Adjusted emissions are down across the board, at 395 grams of carbon dioxide per mile. That's a record low for the post-1975 database.

45,000 complain about used car buys

USED CARS bought from independent dealers drew the highest number of complaints from disgruntled consumers in the last year, according to new figures. Citizens Advice has called on retailers to display consumer rights information at checkouts after more than half a million people complained about shoddy products worth £3.5 billion in the last year. Figures show 45,000 used car buyers lodged a complaint in the year to February, followed by 12,000 regarding mobile phone contracts and 11,500 about repairs by an independent garage.