THE Audi A1 has opened for orders with a UK specification that further emphasises the fact that its more diminutive dimensions are its only half measure.

On the road, the latest, more concentrated embodiment of Vorsprung durch Technik combines the trappings that befit a premium sector hatchback with the technological sophistication and quality of finish that mark out every Audi.

Features common to the SE, Sport and S line options available for UK A1 models arriving later in the year will include alloy wheels, remote central locking, air conditioning, electric front windows and mirrors and a six-speaker single CD audio system with auxiliary iPod connection linked to a 6.5in retractable display.

Sport model additions include larger diameter wheels, sports suspension, sports seats, Bluetooth mobile phone preparation and a driver’s information system, while S line versions upgrade with extras such as an exclusive S line exterior treatment including larger 17in alloy wheels, S line sports suspension and leather and cloth combination upholstery.

In the initial launch phase the generous specification is combined with three ultra-efficient TDI diesel and TFSI petrol engines, all of which compensate very effectively for their relatively small displacements with the latest turbocharger technology, and benefit from engine start-stop and recuperation systems.

The new 1.2 TFSI petrol engine linked exclusively to a five-speed manual transmission kicks off the range, its 86PS and 160Nm peak power and torque outputs enabling a 0-62mph time of 11.7sec and a 112mph top speed, delivered with 55.4mpg capability and low CO2 of 118g/km.

The more familiar 1.4 TFSI power unit is next, delivering its 122PS and 200Nm via the standard six-speed manual gearbox or optional seven-speed S tronic twin-clutch transmission. Equipped with S tronic it takes the A1 to 62mph in 8.9sec, and on to 126mph where conditions allow, and in this form comes impressively close to matching its smaller counterpart on economy and emissions, delivering up to 54.3mpg with CO2 of 119g/km.

The 105PS 1.6 litre diesel is the third engine option, and via a five-speed manual gearbox uses its impressive 250Nm torque to power the A1 to 62mph in 10.5sec and on to a 118mph top speed, while retaining the potential to achieve 70.6mpg economy with emissions of 105g/km.