Hi, I think I've got some information about the Chevette.

The car is owned by Roland Karlsson but Joakim Rydholm was driving it at the rally. It's not driven very often at all. By the way, I've also heard that he is is building an Opel Ascona 400 and owns an ex works Audi Quattro.
He bought the car from New Zealand and restored it really well (looks stunning). According to Roland there are only 20 cars like his (ex works cars?) and that his car is number 12. It has been driven by Pentti Airikkala himself.

The Midnight Sun rally is amazing, I've been competing the last two years.

Best regards
Bjorn