Doesn't appear to be anything too bad for R4's, looks like it will kill alot of mid 90's cars and track day however 
Main items that could affect R4's
Warning Lights - Main beam and Brake Fluid level, speedo illumination
Damaged ball joint dust covers
Headlamp bulb seating - not sure on this one!
Towbar structure and wiring
Speedo problems
Rear doors must work
Door pillars and hinges (doors must open easily - not sure this is ever an issue on an R4 as they are so light)
Steering lock
Engine mounts
http://www.theaa.com/motoring_advice/car-servicing-repair/mot-changes-2012.html

Main items that could affect R4's
Warning Lights - Main beam and Brake Fluid level, speedo illumination
Damaged ball joint dust covers
Headlamp bulb seating - not sure on this one!
Towbar structure and wiring
Speedo problems
Rear doors must work
Door pillars and hinges (doors must open easily - not sure this is ever an issue on an R4 as they are so light)
Steering lock
Engine mounts
http://www.theaa.com/motoring_advice/car-servicing-repair/mot-changes-2012.html