Sat Nav choices
The DVSA are going to use the TomTom Start 52. You do not need to buy the same Sat Nav and here's a selection of Sat Navs at a price range similar to the Start 52. The Start 42 has a 4" screen opposed to the 52 which has a 5" screen. The Garmin Sat Navs seem better value for money due to a carry case, lifetime traffic and speed camera alerts which the TomTom don't have
TomTom Start 42 (Full EU maps)
TomTom Start 52 (Western Europe maps)
TomTom Start 25 (Western Europe maps)
(May use old software)
Garmin Drive 50LM (Western Europe maps)