It would have to be my old astra 1.6 belmont on k reg, used to put £20 in on a thursday and use it all week, i.e driving to my exs on friday 30miles north of me at uni, then sat eveing drive another 30miles home, then go to my best mates, bout 25miles south of me then a few mile down his way and them home, then to work everyday in it bout 6 mile round trip and it would be rallied every single mile! dont know on the mpg as the speedo didnt work nor the petrol gauge! was bit of a shock going from that to my rs trubo.