Audi will show the new A4 Saloon and Avant models at the Paris Motor Show on 25 September.

The new A4 is the next model in the 2005 model year range to receive the new Audi single frame front grille.  There are also four new engines, extensive chassis modifications and a raft of other enhancements.  The order books open in mid-October for first UK deliveries in January 2005.

The petrol engine line-up gains the 2.0-litre turbo-charged FSI unit with 200PS, and the 3.2-litre V6 FSI with 255PS from the new A6. The TDI range expands to include the 2.0 TDI with 140PS and the 3.0 TDI V6 used by both the Audi A6 and A8. These units bring the total of engine options in the new A4 range to ten.

The interior of the A4 has been updated to include the latest generation of steering wheels, new cloth and leather upholstery options and new technology including the latest DVD-based satellite navigation system.

The 2.0 T FSI is expected to be the most popular petrol model in the UK. Its four-cylinder, turbo charged unit delivers 200PS (197bhp) from 5,100rpm through to 6,000rpm and a maximum of 280Nm (206lb/ft) of torque from just 1,800rpm through to 5,000rpm. It strikes an exceptional balance between performance and efficiency thanks to a sophisticated high pressure common rail injection system supplied by a single-piston injection pump which injects fuel directly into the cylinders rather than via the inlet manifold.

The A4 2.0 T FSI with six-speed manual transmission is capable of accelerating from rest to 62mph in 7.3 seconds and can reach a maximum speed of 149mph, yet is also able to achieve 36.6mpg on the combined cycle. CO2 output of 185g/km also places the manual version in the competitive 23 per cent tax bracket for business users.

The best-selling TDI model, and the version accounting for the most sales overall, is expected to be the 2.0 TDI. With 140PS (138bhp) at 4,000rpm and an impressive peak torque output of 320Nm (236lb/ft) available from 1,750rpm through to 2,500rpm, the A4 2.0 TDI with six-speed manual gearbox can accelerate from rest to 62mph in 9.7 seconds, reach a maximum speed of 132mph and cover up to 49.5mpg on the combined cycle. CO2 output of 153g/km ensures an exceptionally low tax rating of 16 per cent, thanks in part to EU4 emissions compliance – in common with every model in the range.

The new 2.0 TDI engine is one of four diesel units in the new A4 range, the most powerful of which being the new 3.0 V6 TDI with 204PS (201bhp). The strongest of the six engines in the petrol range is the 344PS (340bhp) V8 powering the latest generation S4 quattro, which is set to make its debut shortly after four and six-cylinder A4 versions.

Accompanying all these engines will be new generation ‘ML’ five or six-speed manual gearboxes, the latest six-speed tiptronic stepped automatic transmission or the recently revised Multitronic Continuously Variable Transmission (CVT), now offering seven speeds in its ‘manual’ mode. These units channel power either to the front wheels or to all four courtesy of the quattro system, depending on model.

The chassis of the new A4 has been extensively revised to include components from the new A6 and upgrades previously reserved for the flagship S4 quattro.

Servotronic speed-dependent power steering, originally a feature only of the S4 quattro models, is now fitted as standard to 2.0 T FSI, 3.2 FSI and 3.0 TDI models, and the braking system has been revised for even more assured stopping power. It also now includes a brake disc wiping function, first seen in the new Audi A6, which applies low pad pressure against the discs at regular intervals to keep them drier and therefore maximise performance in wet conditions. Optional xenon headlights with swivelling, adaptive cornering lights, will also enhance driving safety and enjoyment.

Prices and full specification for the new A4 Saloon and Avant models will be available nearer to launch.