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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.

Next Dodge Viper will shed some rough edges

Little by little we're getting a clearer picture of the next-generation Dodge Viper SRT10. During a conversation with Dodge boss Reid Bigland at the Los Angeles auto show, Bigland told me the redesigned Viper "will appeal to a broader segment of the market." The car is expected to debut in 2012 but is not likely to appear at the Detroit auto show, he says. Today's Viper is essentially a street-legal race car.

New Mazda3 Hatchback & Fastback priced from £16,695

The New Mazda3 (pictured at Frankfurt) costs from £16,695 Mazda revealed the new Mazda3 back in June, but didn’t manage to come up with prices for the UK. But now, with the Mazda 3 going on sale and due to arrive in the UK in January, Mazda has decided what it’s going to charge. The starting point for the new Mazda3 will be £16,695 for the 1.5 litre SKYACTIV-G petrol 100ps SE hatchback rising to £23,345 for the diesel 2.2-litre 150ps Sport Nav Auto hatchback.