My mini was good at changing compression ratio on the fly. I mean, by quite a lot, and as a one way kind of deal.
V6 Omega to Diesel Picasso, eh? When's it due?
Eleven years ago.
The Omega was bought as a tow car, and the Picasso is a tow car with stupendous mileage and low insurance for learner drivers. Oh, and unlike the Omega, it's not totally knackered. One day perhaps I will buy a hot hatch for driving fun, but frankly these days I only drive for utility and not pleasure. The thing I'll miss most about the Barge is the autobox; that's just how soft I have become.
the temperature of the storage tank.
Very fixed, they are surprisingly far underground so they don't vary much. There was a report done the US recently debunking the "fill up in the morning when the fuel is colder so you get more" urban myth; only the first 1/2 gallon or so varies in temperature, and not by enough to matter.