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

Call to pass on petrol price cuts

THE AA has joined calls for retailers to pass on a fall in the wholesale price of petrol to motorists. Pump prices have "barely budged" from the late summer high of just over 138p a litre despite a 2p-a-litre fall in the wholesale price of petrol a fortnight ago and a further 3p drop last week, according to the latest AA Fuel Price Report. Petrol averaged 132p at the start of the year, "and this is where it should be heading if the wholesale price collapse persists", the report said.

One Lap of the Web: Famous Porsches at auction, Smokey the Aventador and classic snow cars

Here's a tip: If you're going to have a rev battle with a collection of Lamborghini Aventador supercars, keep clear of flammable foliage. Better yet, don't participate in something lame like a rev battle. If you're in a part of the country that's recently been socked by winter weather, don't think you have to put away the classic car: Hagerty Insurance lists five old cars that make great winter drivers.

BMW i3 Range Extender engine adds 10% to the price

BMW i3 Range Extender engine adds 10% to the price The BMW i3 – BMW’s first foray in to a world of electric cars – was officially revealed in July – and due on sale in 2014 – and seems, by electric car standards, to be almost affordable. At a starting price of £30,680 – £25,680 after the taxpayer bribe for EV buyers – it’s no more expensive than other electric cars and does come with some clever technology – and the BMW badge – that will help it move out of showrooms. But as we reported as far back as 2011, the BMW i3 is to get a range-extender option – a small petrol engine that kicks in to recharge the batteries when they get low – which will make the i3 a much more practical proposition.