Are 1987-1989 Porsche 928 s4 realiable cars?

The answer is: not really. they werent the most reliable of porsches, nor the fastest on the track, but they are brutally awesome and totally worth the high repair bills. The S and S4 are just different years of the car. the S4 has a slightly different engine and quite a bit more power. They arent a toyota, but at the same time, theyre much more solid than the ferraris of that era. Remember: its a 20 year old car, and will need to be maintained like one. sucks so few are manuals too. theyre very rare, and clutch jobs are like 2500 bucks. Outrageous.

I owned one in those days, an 928 S. Only don't consider the manual shift, the multi clutch plates don't last long, the automatic is the way to go. Parts are pricey though. Reliability on the one that i had was great. It eats rear Tyre's, mine only lasted about 12,000km

I owned a 1987 porsche 928s4 and the brake lines allways went out on me and the car got into an accident then repaired and sold it for 20,000 in 1999. the difference between the s and s4 is that thhe s in not supercharged and the s4 is supercharged and it also has a turbo in it.