While watching the Grand Prix I decided to pull up Google Maps and plan my route home from the dealer. Here it is below.
I'm picking mine up from near Birmingham and heading home to Cambridge. Start out on the A5 but get off asap and follow this route:
Birmingham A5B4669 - First bendy bit and a few twisty roads - 7 miles
Back roads to cross the M1 then get to Market Harborough - Lovely twisty roads for a long stretch - 20 miles
A6, A14 (round Kettering), A6 - Faster Rd and stretches of Duel Carriage periodically for some bursts of speed - 20 miles
B645 - Second twisty bit with some ups and downs as well - 19 miles
A428 - Fast road, off duty coppers often caught here! - 6 miles
A428 Duel Carridge - Practically a motorway, time to open that throttle - 6 miles
Cambridge 
Total of 80 miles, about 2.5 hours.
What are your guys plans?