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

Boris planning war on diesel car drivers – London Mayor wants drivers of diesel cars to pay more

Boris wants to charge diesel cars an extra £10 to enter London We’ve long banged on about the nonsense of basing the cost of motoring on the Co2 emissions of cars, and it seems the London Mayor, Boris Johnson, also realises that Co2-based taxation has led to a real pollution problem. As we reported as far back as 2010, petrol cars – certainly before the introduction of Euro 6 emissions recently – are far cleaner than diesel cars when it comes to the sort of stuff that really matters – NoX and particulates. And the problem has been exacerbated by basing car taxation on Co2 emissions as lower Co2 levels have been much easier for car makers to achieve on diesel engines, which is why diesel-engined cars now account for around 50 per cent of all cars sold in the UK.

Concept Car of the Week: Honda Unibox (2001)

The Tokyo motor show is famous for unusual concepts and the 2001 edition didn't disappoint, featuring some of the weirdest yet. Nissan unveiled the Nails, Toyota its Pod and Isuzu the Zen, but Honda had arguably the most intelligent concept there – the Unibox. With its square shape, truss aluminum frame, wooden floor and flat, glazed walls the Unibox sits on the fence between automobile and architecture.

One lap of the web: Ferrari renders, Musk is a super villain and '50s Fiat commercials

A week ago we brought you patent drawing of a fastback-style Ferrari FF. X-Tomi Design rendered the car, which looks exactly like what we think an FF coupe should look like. Take a gander over at WorldCarFans.com.