I was filling up my '87 TD when a Jetta TDI owner pulled up to fill his car. I asked him what he was getting for mgg and he replied "about 52 highway", damn. These cars have something like a 18 gal tank, I believe.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member