ST is basic spec,

ST-2 Adding to the exciting features of ST, Focus ST-2 offers Sony Audio Single CD/MP3 player, Bi-xenon headlights, Rear LED lights and 'Quickclear' heated windscreen

ST-3 further adds an array of exclusive features, including Sony Audio 6CD, Full leather trimmed Recaro Seats including driver's and passenger heated front seats with 10-way manual adjustment and adjustable lumbar support and rear sculptured bench.