Was there today, mostly for the classics, but the GTS is nice as well. It has many telemetry ports in the car and is LHD. It sounds louder than a stock m3, but not as loud as the Performance exhaust.
The E34 M5 is spotless, I have never seen a cleaner example, all original unchipped glass, no perceivable wear on the gear knob, steering wheel or buttons. It really is spectacular.
Luis' 530 is a beaut as always. If those seats go missing...
The 333i is nice but it smoked quite a bit. Very nice sound with a lumpy idle.
There is also a 745i... Scratch that, THE 745i. The first prototype that bmw made, unrestored and in decent condition. Some wear on the leather and paint, but mechanically perfect. And it sounds great too! The owner of that car also owns the 333i and 850csi if I am not mistaken.