Highest Trip MPG Reading in your Performance Car

[SCC9]

Let my Audi driver side take over today and decided to do an MPG challenge in my BMW M140i (Yes I know)

51.0MPG in medium rush hour traffic on the motorway is pretty good going I’d say considering the engine displacement/performance etc.

Curious as to what’s the best round trip MPG others have got with their performance/tuned vehicles??

 

[DaveW]

Not sure if a Q8 50TDi fits your criteria, but last year I averaged 46.1MPG on a trip from Merseyside to York. The M62 had a 50MPH restriction practically the entire journey.