My 601 is running tubeless Pneumant 5.20x13 crossply tyres. These look like original equipment and come with the comforting message "Made in the German Democratic Republic". There is enough tread and no obvious sidewall damage. They might be NOS but even so they are well past their "Best before" date. I am going to replace them with some radial tyres next summer. In the mean time I will invest in some winter tyres on new rims (I was going to go with 145/80 R13 tyres). During the 250+km drive home, after buying the car, the handling and steering characteristics were interesting to say the least. Poor directional stability, very vague steering round centre and significant amounts of hopping sideways at the front and rear in bumpy corners. I am fairly sure that the dampers are OK as on straight bumpy roads the ride comfort and damping was surprisingly good. Greasing the ball joints and steering rack has stopped the steering "binding" when just off centre (in gentle sweeping curves) but the steering does not seem to self centre. I am assuming that some of these things are standard for a Trabant, short wheelbase, firm springs and light weight when unladen. If so, which are normal ? I expect that radial tyres should help directional stability and improve cornering a bit, will they improve steering response? Are there any other things I should check with regards to suspension and steering?