BMW 325 Track Day Starter

Me and a couple of mates have just bought a BMW 325 to use as a Track Day car and need to get a couple of things sorted such as Roll cage, Insurance or any other advise would be appreciated.We need to know where to get these from.
We are also going to get Spare Wheels and Part worn tyres as we think we will go thruogh tyres like butter any suggestions as to where we can get these from Cheaply

Cheers
:beer:

Welcome to 10Tenths Rim!

For the rollcage, Safety Devices, or Rollcentre can make one. There are many different insurance companies out there, so an internet search would offer some ideas.

Not sure about cheap tyres, how about visiting a local scrapyard to see if they have anything useable?