Ive owned:
1977 280z in 1989, bought it as my first sports car for $1000. It was a theft recovery and trashed. It overheated all the time, but I was now a Z fan. Some lady hit the right quarter panel and caused $1100 worth of damage. Sold the car as is for $900 and plowed the $2000 into my next Z.
1978 280z in 1990, bought from the original owner! It had all the orginal parts including the stereo, spare, tools, air can, you name it. The only problem was it had a bad paint job when the owner tried to touch up a spot and wound up spray painting the whole car! He even left a hand print! Anyway, the engine was in superb condition and the interior rocked so I picked it up. A month after buying it, a lady slid into my rear bumper. Took the insurance money, found a replacement bumper from a junkjard and had the whole car repainted. It was fun, fast car that would peel out in first and second gear when I had the clutch plate and master cylinder changed. There are other tweeks I can let you in on if interested.
It lasted about two years before the frame started to rust through and the brakes would not stop squealing despite being "Midasized". Realized years later that its better to get rotors from a dealer than going with aftermarket ones. Sold the car for $2,000 and bought an 1984 Porsche 944 in 1992 for $8,000 (one big ass lemon, but a sweet ride with a new metallic maroon paint job that drew the most attention until I started buying Miatas and Mercedes).
Also had an 1986 300zx and an 1988 300zx.