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

Lexus GS 300h: Shanghai Motor Show

Offering much better economy than the GS 450h, it offers not only a viable alternative for private buyers looking for a bit of beautifully built Japanese luxury with lower running costs, but also makes the GS a much more appealing option for company car drivers – probably where most of the sales will be made. Lexus are aiming for Co2 emissions below 110g/km for the GS 300h (the IS 300h manages 99g/km) which will give headline economy around 60mpg – a third better than the GS 450h can manage. Power comes from the same hybrid drivetrain as the IS 300h, which means a 2.5 litre petrol mated to an electric motor and delivering 215bhp and o-62mph in around 8.5 seconds.

London black cabs to go 100% green by 2018

The Mayor of London, Boris Johnson, announced plans this week that will require all new London taxis to be zero-emission capable from 1 January 2018. The Mayor was speaking at Transport for London's 'New Taxis for London', an event where he met five manufacturers currently developing vehicles designed to meet the new requirements. Boris Johnson has previously pledged to make the capital an Ultra Low Emission Zone by 2020, although some have argued that it needs to come sooner than that.

One lap of the Web: PT Cruiser Limo, Blackhawk Farms Raceway, and Swedish baby born in wrecked car

We love to cover the fastest race cars, strongest trucks and particularly the coolest vehicles in the world of automobiles. But we also cover the ridiculous -- like the PT Cruiser limo. Nothing says “I've made it” like a '50s-inspired crossover, and there is nothing like a night on the town in a PT Cruiser limo.