The new millenium ushered in some new changes for the Cadillac Seville. First, the new model no longer required premium fuel. In addition, Cadillac adjusted the engine to minimize noise and emissions while maintaining the Seville's signature performance. Finally, new options for 2000 include a navigation system and a rear parking assist device for when you get too close to the car behind you. Otherwise, the 2000 Cadillac Seville comes in the same 2 trims: the STS and the SLS. The SLS uses a 4.6 L, 275 hp V8 engine with 4 speed automatic while the sportier STS uses a 300 hp version. Both trims have 4 doors and seat 5 while delivering 17 mpg in the city, 28 mpg on the highway. Standard features include air conditioning, power windows, power door locks, leather seats, power seats, cd player, ABS brakes, and traction control. Sunroof comes as an option. The 2000 edition showed that Cadillac could modernize its midsize sedan. Drivers have always appreciated the Cadillac Seville's smooth performance and elegant appearance. However, the same concerns remain about maintenance and durability. Only time would tell whether the Seville could fully reclaim its place atop the market.