I have a 60 round trip commute and average about 37mpg, it's 40+ on the way in and less on the way back. Mix of A and B roads, stock manual non pp 65 plate GTi (except clubsport s muffler

). I keep track everytime I fill the car up and these are my notes copy and pasted from my notepad if anyone is interested.
386.2m 48.13l £68.78 V-Power £1.429
366.1m 44.93l £63.76 V-Power £1.419
326.8m. 44.51l. £63.16 V-Power £1.419
397.8m. 48.60l. £68.96. V-Power. £1.419
390.6m 48.14l. £68.31. V-Power. £1.419
368.7m. 45.44l. £64.48. V-Power. £1.419
339.4m. 43.81l. £62.17. V-Power. £1.419
353.0m. 42.07l. £58.86. V-Power. £1.399
317.7m. 40.45l. £56.99. V-Power £1.409
395.8m. 47.65l. £66.66. V-Power. £1.399
376.6m. 46.02l. £64.39. V-Power. £1.399
380.8m. 45.81l. £64.09. V-Power. £1.399
385.3m. 46.49l. £65.04. V-Power. £1.399
383.2m. 45.87l. £64.17. V-Power. £1.399
380.1m. 46.92l. £66.11. V-Power. £1.409
381.0m. 46.69l. £65.79. V-Power. £1.409
380.4m. 48.31l. £68.07. V-Power. £1.409
383m. 47.27l. £67.08. V-Power. £1.419