The phrase "predecessor model" refers to an older or previous version or model of something. It basically means the one that came before the current or updated version. Full definition
As with predecessor models, the roof opens and closes in around 13 seconds, at speeds of up to 50 km / h. (ausmotive.com)
If we look at the numbers of predecessor this model is gain an 8 horsepower more and 2 fewer lb - ft. (suvtrend.com)
When compared against the respective predecessor models, the new vehicles deliver 30 bhp more power and are 0.2 seconds faster in terms of their standard acceleration. (ausmotive.com)