latest cars: July 2011

Tuesday, July 12, 2011

Monday, July 11, 2011

Saturday, July 9, 2011

audi cars German manufacturer cars

Audi produces 100% galvanised cars to prevent corrosion,[33] and was the first mass-market vehicle to do so, following introduction of the process by Porsche, c.1975. Along with other precautionary measures, the full-body zinc coating has proved to be very effective in preventing rust. The body's resulting durability even surpassed Audi's own expectations, causing the manufacturer to extend its original 10-year warranty against corrosion perforation to currently 12 years (except for aluminium bodies which don't rust).
An all-aluminium car was brought forward by Audi, and in 1994 the Audi A8 was launched, which introduced aluminium space frame technology (called Audi Space Frame). Audi introduced a new series of vehicles in the mid-nineties and continues to new technology and high performance. Prior to that effort, Audi used examples of the Type 44 chassis fabricated out of aluminium as test-beds for the technique.
Audi A4
The next major model change came in 1995 when the Audi A4 replaced the Audi 80. The new nomenclature scheme was applied to the Audi 100 to become the Audi A6 (with a minor facelift). This also meant the S4 became the S6 and a new S4 was introduced in the A4 body. The S2 was discontinued. The Audi Cabriolet continued on (based on the Audi 80 platform) until 1999, gaining the engine upgrades along the way. A new A3 hatchback model (sharing the Volkswagen Golf Mk4's platform) was introduced to the range in 1996, and the radical Audi TT coupé and roadster were debuted in 1998 based on the same underpinnings.
The engines available throughout the range were now a 1.4L, 1.6L and 1.8L 4 cylinder, 1.8L 4-cylinder turbo, 2.6L and 2.8L V6, 2.2L turbo-charged 5 cylinder and the 4.2L V8 engine. The V6s were replaced by new 2.4L and 2.8L 30V V6s in 1998, with marked improvement in power, torque and smoothness. Further engines were added along the way, including a 3.7L V8 and 6.0L W12 engine for the A8.
Direct-Shift Gearbox
At the turn of the century, Volkswagen introduced the Direct-Shift Gearbox (DSG), a type of dual clutch transmission. It is an automated semi-automatic transmission, drivable like a conventional automatic transmission. Based on the gearbox found in the Group B S1, the system includes dual electrohydraulically controlled clutches instead of a torque converter. This is implemented in some VW Golfs, Audi A3 and TT models where DSG is called S-tronic.
Fuel Stratified Injection
New models of the A3, A4, A6 and A8 have been introduced, with the aging 1.8 litre engine now having been replaced by new Fuel Stratified Injection (FSI) engines. Nearly every petroleum burning model in the range now incorporates this fuel-saving technology.