E34 M5 Suspension Coil Springs

[E34M5]

I've just had an inspection on my E34 M5 and have discovered that the rear springs have snapped . I have spoken to other owners who have experienced the same problem and wondered whether this is just an age / mileage thing or a common fault . I have ordered new original coil springs but am considering a total shock change.
Does anyone have any thoughts / suggestions ?

 

[Big Daddy]

Most likely age and wear, but I have no idea. How many miles are on your car? I would use the factory Alpina springs for your car and keep it as stock as possible for values sake.