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Jeep uncovers the 2012 Grand Cherokee SRT8 packing 465 hp

Following a one-year hiatus, Jeep is returning the fire-breathing Grand Cherokee SRT8 to the lineup for 2012, which made its world debut at the New York Auto Show. Central to the changes is a new 6.4-liter Hemi V8 engine producing 465 hp and 465 lb-ft of torque--a 45-hp and 45-lb-ft improvement over the outgoing 6.1-liter unit. Jeep says the SRT8 is good to hit 60 mph in 4.8 seconds, cover the quarter-mile in the mid-13-second range and reach a top speed of 155 mph.

America trialling solar-powered roads

Solar Roadways After glow-in-the-dark road markings proved to be a bit of a flop when the paint washed away in the rain, experts are now experimenting with solar-powered motorways. A small, family-owned American company based in Idaho called Solar Roadways has created a short section of road that uses the sun’s energy to power nearby buildings, as well as electric cars. If the solar-powered roads are adopted worldwide, it could put an end to the range-anxiety commonly associated with electric vehicles.

Ford Fiesta ST Concept arrives

Ford Fiesta ST Concept Just as we expected, Ford has revealed a properly hot Fiesta to take on the new wave of superminis – like the Polo GTI – and is offering up the Fiesta ST with a 1.6 litre EcoBoost lump which will deliver 178bhp. This is Ford cashing-in on its Fiesta WRC programme to price a proper little hot Fiesta, and in the process turning its back on the misjudged decision to play down performance Fords in our eco-obsessed world. Good.