Ford is to offer Trafficmaster’s SmartNav system on all Fiestas and Focus STs as part of a promotion, which starts on Saturday.

Trafficmaster is hosting a Ford test drive week, which runs across 650 dealerships. Customers will be able to test out the cars as well as the satellite navigation system, which was adopted by Ford 18 months ago.

Fiesta and Focus buyers will be offered a package of the navigation service, speed camera warnings and stolen vehicle tracking.