I spent two weeks in England.
The first week was touring the major cities: London, Manchester, Liverpool, etc. We drove along the coast mostly to get a feel for the culture differences in different parts of the country. England may be small, geographically, but they are just as diverse in their culture and slang as Americans.
The second week we were in England was spent on the canals in the countryside. My extended family rented three canal boats and just slowly motored up the canals, heading northwest towards Wales. There really wasn't much to do, but it kept the whole extended family together, with new scenery every hour, catching up on life. The boats moved so slow you could walk along the canal banks and keep up with them. Working the locks between canals was a different experience, and eating at people's homes (complete strangers) like they were tiny restaurants was unusual, but a great experience. We ate lots of fish.
I would recommend just a few days in England hitting the usual tourist sites. If you can coincide the trip with something else - like Scott going to see the LZ reunion then doing some touring - you'll end up spending your time and money better.
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I USED TO HAVE an 85 Camaro 305 4bbl, 90 Firebird V6, 97 Firebird V6 (10 speakers!). Despite the two family vehicles, 3 kids, wife and mortgage, I can finally realize the dream - 88 TA almost all stock... for now.
http://www.cardomain.com/id/untameddave
Wanted this -

, but ended up with this -

for free. Can't argue with free.