I've resently took off my hardtop. Today I drived the car on the highway for the first time without hardtop but with the softtop up. I experienced that the car was shaking/wobbeling at higher speeds. Not shakey in the steeringwheel but the whole car. I've never had a cabriolet before so I don't know what it's supposed to feel like. Can anyone please comment on this?!

Thanks

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Emil Österman, Stockholm - Sweden

MB SL500 -93 - Silver
MB 230CE -84 - Silver
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MB 180B -59 - Green