There's no single answer to how much a new car cost in 2000. The price varied wildly depending on the make, model, features, and trim level. A basic economy car could have been purchased for under $10,000, while a luxury car or SUV easily topped $40,000 or more.
The average transaction price for a new car in 2000 is estimated to be around $20,000 - $22,000, but that's just an average and doesn't reflect the wide range of prices available.