After 14 months and just over 10,000 miles my T3 r-design pro manual is telling me 40.9 mpg. I reckon I was getting 43mpg on a 50 mile round trip commute prior to lockdown on A and B roads. Mostly comfort mode, some eco. I don't regret moving from diesel and I had also considered the D3 as my mileag...

I'm very impressed with the T3 engine. Plenty powerful enough, smooth, and quiet. After 6 months and 7k I'm on 41mpg. Have also managed 50 on motorway, but also had a couple of months only doing short town journeys that were more like 35-36. 25 miles each way commuting on b roads gets me 42-43. Beyo...

At nearly 4000 miles, am currently on 42.8 mpg. Mostly comfort mode with some Eco on motorways. Have achieved 50mpg on a couple of 100mile+ trips (interestingly in both comfort and eco).
Very happy with this and absolutely love the car......