I get 28mpg from mixed driving. That's a tank average from the trip computer though. Careful long distance and I can get 31mpg. I think if you are looking for an economic car then the RX400h isn't it. If you're looking for a large, comfortable, practical, fast car that doesn't have awful fuel consumption then it's a strong contender. I've had mine for a year and love it. I can't see why I'd ever want to change it, but I probably will before the warranty on the hybrid drive ends. Most likely next car is a RX450h :)