I actually tried the S60 some months ago at the dealer. To the shock of the sales chick (who saw me pull up in the MINI) I was not able to fit into this car well at all.
Super tight cockpit and terrible headroom/legroom. Not just for driver, but passengers as well.
The c30 is a bit more roomier due to its coupe config, but not much.
Nothing really fits me well in the Volvo lineup save for their top of the line SUV, which i don't care for.