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

Volkswagen XL1

This, remarkably, is the production version of the Volkswagen XL1, the most fuel-efficient production car in the world, a car we'll see in Geneva in a little over a week. Barely changed from the concept version shown at the Qatar motor show two years ago, the production XL1 is the first production result of VW's 1-liter project – to design a car that uses less than 1l/100km (282.5mpg imperial) – that started with the lozenge-shaped, tandem-seat 2003 1L and the later L1 of 2009. The XL1 actually beats that by sipping just 0.9 liters with CO2 emissions of 21g/km.

Nissan 370Z Nismo cost £36,995 & rest of 370Z range gets a price cut

The extra bang you get from the Nismo isn’t that great – it gets just 13bhp more than the regular 370Z – but it does get tweaked suspension, brakes and a sports exhaust as well as a rather OTT body kit. The body kit may be a bit too brash for many tastes, but Nissan do say it gives the 370Z levels of downforce that rival the GT-R, so when your neighbours laugh at your Halfords-esque 370Z you can tell them it’s all about the go and not the show. We’re sure they’ll believe you.

Morgan Plus 8 Speedster celebrates 100 years of Morgan car production. Costs £69,995.

The Morgan Plus 8 Speedster (pictured) celebrates 100 years Morgans may still look like Morgans did half a century and more ago, but under the skin lies a car capable of holding its own (most of the time) with cars from the modern er. And none more so than the Plus 8. Now, to celebrate 100 years of building cars at their Pickersleigh Road factory in Malvern, worcestershire, Morgan has revealed a limited edition (although such is Morgan’s production numbers you could reasonably consider every Morgan a limited edition) of the Plus 8 – the Morgan Plus 8 Speedster.