I will correct you Brett, You are wrong! Both S1 and S2 are BT1 friendly!
There is a difference in the late BT1'S with them running the VN style seats and the rear squab is trimmed with a velour upper panel. That is about the only difference!
Naa bro.. BT1's came out in S1 and S2
The only difference is the seats, the S2 has the VN style seats and different material to the S1.. and im not 100% sure about this but i think the the S2 Map Holder has a hole in the side of it to fit batten in
s1 has sqaure head rest like more chepo materail an s2 diffrent head rest like the vn smaller than serious1 an material the is diffrent to the whole thing.
thanks for the info guys, any1 else got more info?, i got a pic of a stock bt1 S2 and it has a proper seatbelt in the middle of the backseat and also noticed fe2 was written on the build tag which i havn't seen on s1 bt1's , do s1 bt1's have the proper seatbelt in the middle of the backseat as well?