I've just been through all this bullshit, raised the car by 45mm (well really about 70mm with the 60 profile tyres) and had to get it engineered, they measure the height of a car in two different ways at the pits, if it's lowered they measure from underneath, if it's raised they measure it from the height of the roof, they have stats for both, while looking for the standard roof height for a 94 WRX Hatch I got 4 different heights ranging from 1,410mm to 1,445, luckily they took my word for it & didn't actually measure it, I've bought two cars that were dumped on their arse on coil overs, one was so stiff I felt the cracks in my driveway and the other was a write off because the guy was going around a sharpish bend, hit a small rock & bounced/speared off into a tree because the fucking thing was so stiff, so I don't really blame them for picking on cars that just about sit on the ground.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.