Chrysler Regal (not Valiant):

https://www.imcdb.org/vehicle_1380556-Chrysler-Valiant-CL-1976.html
https://www.imcdb.org/vehicle_130612-Chrysler-Valiant-CL-1976.html

1980+:

https://www.imcdb.org/vehicle_1947600-Ford-Falcon-XD-1979.html
https://www.imcdb.org/vehicle_1947604-Datsun-200B-810-1979.html
https://www.imcdb.org/vehicle_1249617-Mitsubishi-L-300-Express.html ([SA] code)

"LX Plus" trim:

https://www.imcdb.org/vehicle_652924-Nissan-Pulsar-N15-1999.html

Not [VQ] Sedona:

https://www.imcdb.org/vehicle_1144493-Kia-Sedona-VQ-2006.html
https://www.imcdb.org/vehicle_1501649-Kia-Sedona-VQ-2006.html (looks like 2002+ Sedona)

Not 1984:

https://www.imcdb.org/vehicle_1335666-Mitsubishi-L-300-Express-1984.html

TV show ended in 2023:

https://www.imcdb.org/movie_13925166-Surviving-Summer.html