Well I have recently bought an IS200 Sport 2001, major step down from Mitsubishi GTO 3l Twin Turbo but love the drive and fuel economy is superb compared to the old girl. I get around 25/gal. No way near as quick, obviously but love the drive, so personally not finding the economy a problem, not brilliant but all the same better.
Mind you tax @ £150 for 6 months was a shock, the GTO was £120 for 6 months and that just spat pure fuel out the back I swear.
Anyway I'm new to the forum and look forward to speaking to you all im sure theres plenty of helpful peoples on here
Darren