Dont need any wheels now but FWIW :
I run 14x7 Rail (French?) period Alpina' copies on the street. Been very pleased with them. But tire options getting limited.
For track,
Had a set of WEDS 15x7 2pc spoked wheels, gold centers that I painted black.
Damn..Wish I still had those (hey member, if ya ever wanna part with them, please give me first option, ha! Thx
Replaced with a set of 15" BBS 2pc look alike for the track shoes. 15" a popular track tire size...lotsa options
Alpina spoked style/looks can be
had in 14", 15", 16" sizes.
My conclusion: any Alpina spokers 14,15, 16 look great on e9s. Personally, anything larger looks awkward.
Choice usually determined by purpose, function, availability, opportunity and budget.
Just my 02 cents.
But those 14" alpina 2pc clown shoes might look pretty neat on my clown car