Vauxhall's mid sized family hatchback that was introduced in the late 1970's and has now been through seven generations.
Maximum # of Registrations = 1149218
Latest # of Registrations = 1028278
An early SRi/GTE will be collecable these days. Hard to judge the potential of the later models (mk3 onwards) as Astras have never been that loved.
In fact, Mk1 GTE's (79-84) are now very rare, difficult to get accurate numbers from the DVLA as their data only goes back to 1996 and they don't class cars by their evolutions. The figures would suggest that there are signifcantly less than 100 still on the roads, and that is rare indeed!