What a tuning house changes, and why the factory did not.
CARZONE
SPECIALS
A workshop’s changes, read against the factory’s reasons for not making them.
Section 1 of 4 · 3 guides

A plate is the difference

Type approval is the line between a car and a modified car, and only a handful of firms have crossed it. Three guides on what the paperwork actually covers, who issues it, and who carries the liability when nobody has.

A folder of technical documentation open on a workshop desk
Section frame

The dossier, not the dyno sheet. Approval is a documentation exercise before it is an engineering one.

Everything in this section

The other three sections