This 'getting onto a roundabout' sh!te as a reason to buy an R is ludicrous. I don't see run of the mill cars struggling to do it so I'm sure 300 bhp and all wheel drive is hardly an essential.
Run of the mill cars with run of the mill tyres don't have tramping bother as they can put down what they develop - my wife's 116ps 1.6TDI A1 on 16" Hankooks is far more surefooted than my GTD on Bridgestones ever was - in the wet and dry.
There are 2 very busy roundabouts on my old commute that gave me bother in the GTD (my 2 Sciroccos without Bridgestones never had bother, but my MK5 170TDI on Bridgestones had tramping issues also), small gaps that an 80PS car gunning it with sure-footed grip could manage to take advantage of. If my GTD had come on Contis/Dunlops/Pirellis and not tramped under all but the most heavy-footed getaways, I may never have thought about getting an R.
Maybe you're right, don't change your car, change your tyres (I changed my car and then changed the tyres - double whammy).
