Thanks for the advice guys. To be clear, I'm not looking for something comparable to the RS4, really - the point of the Volvo would be for something comfortable and practical, with decent toys yet without giving up on a bit of poke when required.
Until late last year, I ran a 1st gen Honda Insight for a 8 years as effectively a daily driver, so am cool with the different driving styles that would be needed. I have a Lotus for "fun" driving anyway...
I had a look at my friend's 2019 XC90 T8 in Denim Blue today, and he said the Sensus was OK - was there a major update that I need to be aware of? (As Polestar Pete pointed out)
I think I'll need to go and test a whole slew of options
What's the practical difference between T6 Twin Engine and T8? Is it literally the engine tune or is there any other major differentiator?