You will need to cut out the grey rectangles to stop from covering up the air vents on the model. Also you will need to cut out 2 circles on the top decal to allow for the 2 plastic circular pieces on the model.
Adhesive Vinyl Decal OO gauge Dapol Track Cleaning Coach - BR Test Car livery
Adhesive Vinyl Decal suit OO gauge Dapol Track Cleaning Coach - Network Rail
Adhesive Vinyl Decal to suit N gauge Tomix Track Cleaning Coach - GWR livery
Adhesive Vinyl Class 350 Decal suit OO Gauge Bachmann - London North Western
Adhesive Vinyl Class 43 HST Decal suit OO gauge Hornby / Lima - NSE livery set
Adhesive Vinyl Class 43 HST Decal suit OO gauge Hornby / Lima - 125 Group Set 2