Amazing, when you buy a new car now you are lucky to get three choices (one of which will be grey!)
Or judging from the cars we see on the road all of them will be grey...
I have a colour chart which is undated ( code is 88 795 996 if that helps). It lists some colours not mentioned in the thread so far as I can see, it also has trim options in 'Velvet Textured Cloth' TVE and Leather. It says it's for Beta Saloon, Beta Coupe, HPE (No Beta which helps date it a little) and Beta Spider
Here are the colour and trim options
Body Colour Cloth TVE Leather
Ice White 182 Blue/Grey Black Black
Morocco Beige 111 Beige Beige Beige
Capri Blue 129 Blue/Grey Black Black
Ascot Dark Green 109 Grey / Beige Beige Beige
Lancia Blue 105 Blue/Grey Beige Beige
Nearco Red 108 Grey / Beige Black Black
Amaranth 125 Grey / Beige Beige Beige
Racing Red 123 Grey / Beige Black Black
Black 122 Grey / Beige Beige Beige
Met Grey 135 Blue/Grey Black Black
Met Blue 132 Blue/Grey Black Black
Met Beige Beige Beige Beige
Amaranth looks to be a very dark blue in case you wondered...