Ken - why is the 850T5R more valuable than the 850R ?
I realise the T5R was the model based on the saloon car racing success but the R was built in fewer numbers.
Because the T5-R kicked it all off - and was the only one available in "that" yellow and with "those" wheels (Pegasus). It was the genesis of the loopy modern Volvos and a yellow, manual, estate is going to cost a pretty penny now.
The R has the more powerful engine though