0:00 A countdown of 15 items or modifications on British cars that are becoming illegal, failing MOTs, or causing significant financial loss due to stricter enforcement.
0:47 number plates
3:11 LED bulbs
4:58 exhaust
6:48 Front window tints
8:21 diesel particulate filter
10:15 number plate flipper
11:51 mobile phone
13:44 e-bike conversion kit
16:11 catalytic converter
18:05 clean air zones
19:59 twenty thirty deadline
21:51 undeclared modifications
23:45 seized vehicle
25:13 imported car
27:07 Nissan Skyline GTR

One overlooked modification could fail your MOT, void your insurance or cost more than the car is worth. I count down 15 risks facing British drivers as enforcement, cameras and vehicle checks become stricter.

I cover number plates, LED bulbs, exhausts, window tints, DPFs, catalytic converters, clean air zones, undeclared modifications and imported cars. I also explain what is already law, what is still being considered and where the real costs can appear.

I finish with practical checks for your own car, including insurance, emissions zones and the Nissan Skyline GTR. Buy with your head, not the badge.