If money is an issue then a 182 is not the car for you.
think our record is about 420-430.... but that was driving with a very light foot!.... but it can be done!... if you keep the revs under 3k, and keep a top speed of about 60mph!
if it costs about £50 to fill... i'd say that'd get me about 380-400 miles
330 max.
i did brum and back a couple of weeks back and still had 1/2 tankful left - didn't go above 65 though to acheive it.... wouldn't recommend it for your sanity though.I've been going from Wakefield to Broad Street in Birmingham & back again over the past 2 months. I've been 3 times so far, 114 miles each way so 228 in total equals 1 tank of fuel every time.
Maybe 1 hour 25 minutes to complete the journey might expalin it.