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

Vuhl 05 is a Mexican Ariel Atom – costs from £66,000

The Vuhl 05 (pictured), track-focused road car, has been revealed The Vuhl 05 – which has been teased recently – was unveiled this afternoon in London as Mexico’s answer to the Ariel Atom. The Vuhl 05 uses a bonded monocoque with honeycomb panels and aluminium covered on plastic panels to keep weight down to just 695kg. That means that even though the Vuhl 05 has only 285bhp available from its mid-mounted 2.0 litre turbo Ford EcoBoost engine, it can still get to 62mph in 3.7 seconds thanks to a power to weight ratio of 400bhp per tonne.

Fiat 500C Convertible – launched in the UK today

The new Fiat 500C Convertible launches in UK showrooms today And if you want a fun, economical and stylish little convertible to zip round the city in this summer, it would be hard to find a better option than the 500C. True, its ‘cutesey’ style is not to everyone’s taste, but it’s hard to argue against the car when it costs just £11k (for the Pop version) and is quite likely to hang on to a good chunk of its value for the next year or two. But retro-looking as it may be, the 500C is very much a modern car.

Subaru shows off Viziv2 concept at Geneva Motor Show

Subaru brought a new concept to the Geneva Motor Show this week, dubbed Viziv2. It's hard to ignore the somewhat alien-sounding name, and it stands for "vision for innovation." And it's the second Viziv concept, Subaru having debuted a similar concept car at last year's Geneva Motor Show. Like the concept that came before it, Viziv2 is meant to preview design language and technologies working their way into Subaru production cars, and we can already see a resemblance between the 2015 Subaru Legacy, as well as the recently-revealed WRX STI, and the concept vehicle that Subaru has brought to Geneva.