I have a 99 SL2 with 184,000 and I get about 26 city, a little over 32 highway. You should add in this question how many miles between quarts of oil-if I am lucky, I can go over 600 miles before having to add a quart of oil-if I do a lot of idling, it can be worse (valve seals). At this stage of it's life, it is a commuter car, can park in anywhere in the city and no one pays it any mind at all. Plastic sides mean no dings/dents, therefore it looks pretty nice for a 13 year old car. It still runs great, and has a good heater/ac, comfortable. It has ABS and traction control (actually works), and is really easy to work on.