This is the GTE with a depleted battery, in worst conditions (no traffic, no traffic lights, speed limit 40-60 apart from a 3 mile section of 30 – it’s a round trip).

The absolute lowest we had so far was 48mpg on a two mile drive petrol only (showing the car off to a neighbour with an extra sprinkle of skinny pedal).
We’re currently 500 miles in on our first tank and have still 140 miles indicated left (plus electric), averaging around 85mpg since refuelling so far – and that’s in cold weather (with the spell of snowfall in there), heating for the majority of drives and a still tight engine.
Yeah, we’re pretty happy, and the math worked out. Way cheaper than our 1.5 Ateca, which managed around 370 miles per fill in winter (around £65 to fill, about 36-39mpg). We’re still on our first tank, paid £49 for Super and an additional around £12 in electricity (it’s £18 used in our “cheap hours”, but heatpump tumble and washing machine are running every two-three days in that timeframe too). We basically halved our cost per mile, could save more if we went for normal E10 but since we’re refuelling rarely, Super it is. In summer this number will go up considerably, since at the moment our electric range is only about 24 miles indicated of a possible 35. In 14C it’s 29 miles indicated, so in summer we expect 33+. Best range on actual hybrid driving (the app indicated purely electric as 300mpg) was around 130, with an outlier of 270mpg but i assume that was a drive where we drove 90% electric and the engine kicked in for the last two miles or something.
I do think we’re ready for EV too, juggling the battery capacity, planning journeys etc is less complicated than we thought. I still get, funny enough, range anxiety (because i want to maximise the benefit of the PHEV system and hate leaving efficiency on the road), but it’s manageable.
Prior: SEAT Ateca Xcellence Lux 1.5 TSI DSG MY19, VW Golf GTE PHEV DSG MY23
Current: Hyundai Ioniq 6 Ultimate
Next: we'll see what's available in 2028.