Engine: 1.6-litre four-cylinder turbo-diesel
Transmission: six-speed manual (optional six-speed automatic)
Power: 126 bhp at 4,000 rpm
Torque: 192 Nm at between 1,900 and 2,750 rpm
Fuel consumption (combined cycle): 76.3 mpg
CO2 emissions: 97 g/km
Top speed: 122 mph
Acceleration (0-62 mph): 11.5 seconds

The price of some top-selling cars has risen well above the inflation rate over the last four years, according to Which? magazine.

How Ford has cut its Focus's CO2 output without compromising power

Engine: 3.0-litre in-line six-cylinder turbo-diesel

Transmission: eight-speed automatic

Hard-pressed motorists have enjoyed a respite from record-high fuel prices in recent days, according to AA figures.

Bigger means more power. Right? Wrong. A new generation of compact petrol engines could help transform the car industry, and help the environment too. Jamie Merrill reports

Engine: 2.0-litre four-cylinder turbo-diesel
Transmission: six-speed manual
Power: 150 PS between 3,500 and 4,000 rpm
Torque: 320 Nm between 1,750 and 3,000 rpm
Fuel consumption (combined cycle): 68.9 mpg
CO2 emissions: 106 g/km
Top speed: 134 mph
Acceleration (0-62 mph): 8.6 seconds

Engine: 1.7-litre four-cylinder diesel, turbocharged
Power: 130 PS at 4,000rpm
Torque: 300 Nm between 2,000 and 2,500 rpm
Fuel consumption (combined cycle): 62.7mpg
CO2 emissions: 117g/km
Top speed: 124mph
Acceleration (0-62 mph): 9.4 seconds
Price: from £16,725

A final batch of 26 Saab 9-3 convertibles has arrived for sale in the UK.

Citroën surprises with a car worthy of Côte d'Azur glitz

Supermarket Asda is to cut its fuel prices by up to 2p a litre, it was announced today.

Motor: synchronous electric motor (12,000 rpm max. speed)
Battery pack: 2kWh lithium-ion, 192 cells/25 modules divided between three compartments
Power: 170 PS
Torque: 250 Nm
Range: up to 100 miles
CO2 emissions: zero at tailpipe but overall impact depends on fuel burnt at power station
Top speed: 90 mph (artificially limited)
Acceleration (0-60 mph): 9 seconds
Price: trials vehicle not available for sale

Supermarket chain Asda is to cut its fuel prices by up to 2p a litre.

Engine: 3.0-litre in-line six-cylinder petrol engine paired with electric motor
Transmission: eight-speed automatic
Power: 306 PS at 5,800 rpm + 40kW (electric motor)
Torque: 400 Nm between 1,200 and 4,000 rpm
Fuel consumption (combined cycle): 44.1 mpg
CO2 emissions: 149 g/km
Top speed: 155 mph (artificially limited)
Acceleration (0-62 mph): 5.9 seconds
Price: £46,855