soooo, I've just got a Mk4 tdi estate (100bhp) as a new company car

very happy camper about this but a bit miffed about the handling, i had a focus estate before this and it stuck like poo to a blanket. I know the tires are 195 65 15 on steel wheels, can i anyone recommended any thing to crisp things up a bit? It feels great on the motorway but lousy on smaller roads. Would fitting a lower profile tire make much of a difference? I cant really get away with fitting coilovers but maybe gti springs?

?? Any help/info would be appreciated.
I'm a bit new to the newer veedubs but Ive now got a MK1 MK2 and MK4 on the drive!!!! SWEET