The S-Type came with a very obvious fault: Dull plastic headlights, but I already knew how to fix that: "Turtle Wax - Headlight lens restorer". It's not cheap, but it does wonders, if used correctly. My headlights were actually that far gone that I had to start with wet sandpaper, which was more corse than the sanding pads provided: I started with 2000 grid wet paper & then worked my way thru provided pads. To apply the lens clarifying compound I used a drill with a rotation cloth - carefully!!!