Thanks for the replies guys.
It’s done 189,000 he’d used it as a daily commuter for the passed 7 years doing around 80km a day guessing a lot of that would have been bumper to bumper traffic which probably has something to do with the thud.
Picked it up for $2000, in NZ it was stuck on limp mode & supposedly had a stuffed turbo which turned out to be loose bolts.