pretty sure they will, as mark higgins ran these on his 340 touring car:
15" TSW Hockenheim R racing alloys with 205x50R15 Michelin tyres
not sure if it helps, but here is his website:
http://www.higgins340.fsnet.co.uk
As a general rule, you need 4x100pcd, et38-ish and centre bore 52.1mm
Hope this helps
Jason