The HR was known for its rusting issues, even in the early days after its release. If you can get one without rust, everything else is basically a small issue in comparison.
Rust Rust Rust Rust Rust Rust Rust. Rust in the doors, rust in the floor pan, rust in the firewall, rust in the sills, rust in the wheel arches, rust in the bootlid, rust in the bonnet.
Brakes can lock up and overheat relatively quickly
Suspension and steering parts can wear prematurely due to excessive body roll
Did I mention that rust was an issue?