The Audi A8 burst onto the scene with several firsts in the U.S. An aluminum-built frame, panels, suspension, and engine was the first of its kind in a retail sedan in the U.S. Making the car much lighter than comparable ones in its category, the A8 was able to achieve better handling and gas mileage. Another first was the offering of six airbags. The rear side impact ones were hidden in the seats rather than the doors. The 1998 Audi A8 makes only a few changes, the most notable of which is a new 5-speed Tiptronic auto/manual transmission. A new glass sunroof replaces the previous aluminum sunroof. Base model A8s feature the 3.7, 230-hp V8, and the quattro AWD sedan features a 4.2, 300-hp V8. The aluminum structure and powerful engine combo adds a lot of kick and speed to this full-size sedan, giving the driver confidence while passing on the highway, climbing uphill, or tackling tough weather conditions. The interior is enormous, with plenty of legroom all around -- perfect for long family trips or impressing business clients. Typical Audi luxuries adorn the interior. A particular favorite is the solar sunroof option, which powers a ventilation fan that cools off the cabin while parked in the sun. Quattro performance, increased power, and a quiet ride are all favorites of 1998 A8 owners. The sedan is a perfect combination of classic elegance and fun. While some feel the exterior is too plain and nondescript, others love its subtley and unpretentiousness. Drivers feel safe on the road, but also comfortable inside with the leather heated seats and space. Outrageous maintenance costs shock some owners, who complain about the A8's unreliability. Poor service from the dealers seems to be an Audi trademark. Small mirrors cause blind spots, and drivers still have gear-shifting problems with the Tiptronic.