E39 M5 Independent Specialist Glasgow?

[t563sk1]

Apologies if this is covered elsewhere, I tried various search criteria first however nothing really came up which was recent enough to still be reliable.

As per the title really - can anyone recommend a trustworthy BMW independent specialist in or around Glasgow to take care of my E39 M5?

Will be due a InspII and MOT in a couple of months so I best start planning ahead - car will be spending the summer months in Spain so I want to be sure it's tip top before I go.

Thanks in advance,

Steve