Austin 1800 (1965?)

#2
looks fairly accurate, its a mark 1 - and also called morris 1800 / wolseley 1800 (different grill) austin 2200, and others! I think I'm the only one thats modelled one of these...
 
#3
Austin Mk I introduced in 1964 has only 1800 cc motor, like Mk II introduced in 1968 too. Only Mk III from 1972 has 1800 and 2200 motors.