Although I'm a little late to this thread, this may help
The recent write-up in Miscellany was a bit misleading on the Roadster spec, as this car was fitted with some optional upgrades, in the writers defence has was probably not made aware of this when he was lent the car to test
My personal experience of my own new 3.7 (first customer car with 5link) was that even the lads in the factory weren't fully up to speed with the revisions
But this is what you get, 5link rear, standard MMC front (not SSL as motioned at Geneva), drums to rear & I had to spec brake reaction bars to get them
To get factory fit Disc's all round you have to spec up the Aero Racing option, personally I'm happy with drum rear as it's very hilly where we live and I need a working handbrake (although reaching the bl*~*y thing is another story)