I am new to driving an SLK. My previous car was front wheel drive and had smaller tyres. I have found that if there any undulations on the road surface, the SLK tends to follow them and I have to concentrate quite hard to make sure I'm not weaving around too much!! Mind you, some of the roads are awful round here!! Is this due to rear wheel drive, width of tyres, or anything else?? Can I try a different make of tyre. I have Uniroyal rainsports fitted.