Where do Jaguar Mk2s rust?

The sills (inner and outer), floors, jacking points, valances, wheelarches, boot floor, spare-wheel well, door bottoms and the structural areas around the suspension mounts.

Is a rusty Mk2 worth restoring?

Only with open eyes — structural rust repair is expensive, so a rusty car should be much cheaper, and even then a sound shell is usually the better buy.

How do I check a Mk2 for rust?

Look underneath and inside: lift the carpets to check floors, probe the sills, inspect the boot floor and spare-wheel well, and sight the panels for filler or uneven gaps.

Is the Mk2 a monocoque?

Yes — the Mk2, like the Mk1 it is based on, was Jaguar's first unitary-construction design, which is why structural rust is the key buying concern.

Knowledge base

Rust & Where They Rot

By Jon Cosson — classic-car owner, North Yorkshire, near Thornton-le-Dale

Corroded sill and floor section of a 1960s British classic car bodyshell under workshop inspection — Placeholder image — owner to replace with a photograph of the car's own structural repairs.

The Mk2's monocoque is strong when sound but, like all early Jaguar unibodies, it has many places where mud and water collect and rot takes hold. Knowing where to look is the difference between a sound car and a money pit.

The structural areas (the important ones)

Sills — inner and outer; structural, and a big job to do properly. The first place to look.
Floors and jacking points — soft floors and rotten jacking points betray a damp, tired shell.
Front and rear valances, crossmembers and suspension mounts — corrosion where the suspension loads into the body is serious.
Boot floor and spare-wheel well — classic water traps.

The cosmetic-but-telling areas

Wheelarches (front and rear) and the rear-wing area.
Door bottoms.
Around the headlights and the front grille surround.
The fuel tanks and their surroundings.

How to check

Look underneath and inside, not just at the shiny paint. Lift carpets and check the floors; probe the sills; sight down the panels for uneven gaps or ripples that betray filler or past repairs. Since most cars are restored, judge the quality and honesty of the work. Bubbling paint and uneven shut lines are warnings — see buying a Jaguar Mk2.

Why it matters so much

A rotten shell can cost more to put right than the car is worth — whereas a mechanically tired but structurally sound car is a sensible project. Structure first, always.

Common questions

Where do Jaguar Mk2s rust?: The sills (inner and outer), floors, jacking points, valances, wheelarches, boot floor, spare-wheel well, door bottoms and the structural areas around the suspension mounts.
Is a rusty Mk2 worth restoring?: Only with open eyes — structural rust repair is expensive, so a rusty car should be much cheaper, and even then a sound shell is usually the better buy.
How do I check a Mk2 for rust?: Look underneath and inside: lift the carpets to check floors, probe the sills, inspect the boot floor and spare-wheel well, and sight the panels for filler or uneven gaps.
Is the Mk2 a monocoque?: Yes — the Mk2, like the Mk1 it is based on, was Jaguar's first unitary-construction design, which is why structural rust is the key buying concern.