I've been running a BMW 225xe plug-in hybrid for the past year and 10,000 miles. Obviously a completely different car but the power outputs, performance etc are comparable.
My commute is 3.5 miles to work, 3.5 miles back home. I can easily do this all-electric. A full charge of the battery from around 20-25% capacity remaining takes about 3 hours from a domestic 13A socket. At my electricity tariff (13p / KWh), that's about 80 pence.
In the current temperatures, a full charge will give 18 commuting miles before the petrol engine will kick in (which it does automatically when the battery charge reaches 5%). In practice, this means I can go weeks at a time without the petrol engine ever starting. Winter temperature cut the electric range by about 25%.
My 'combined' economy (i.e. petrol plus electricity) works out at 50.2mpg. When not charging the car (on a week's holiday in Wales recently, there was no accessible charging point), it averaged 42mpg in mixed driving. It gives the same consumption on long motorway trips at a cruise-controlled 77mph too.
My advice is, try one and see what you think. I really like mine, but remember this: as with any car, you will NEVER achieve the official figures published for electric range or fuel consumption.
However, my 225 is still giving me better economy than any of my previous turbodiesels, while being much more powerful and much quicker, and just as practical in everyday use.
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