Have driven into work near heathrow this morning on low petrol. Forgot to bring my fucking wallett and to get back its about 70 miles to portsmouth. Now the range on the coputer on my car says 45 miles. So going by my cars computer i should run out of petrol 20-25 miles before i reach home.

I can't put any money in the car cos i forgot my fooking cards so my question is. Are these ranges accurate or do they usually allow for some reserve? So it says 45 miles but really it'll do 70-80 miles?

I guess i could drive at 45mph all the way and i might just make it.

Fooking hope so!