Motorcycle vs car to operate cost?

So i daily drive a motorcycle. I usually buy a bike fro 1-2k dollars put a little work in it each year a few hundred an drive it. Then sell it after a few seasons for about what i paid. I'm looking at buying a older cars 80s early 90s an it seems to be an endless money pit. Pay 2-3 grand for a 80s car with high mileage then have to maintain them an insure them. I pay 240 a year liability for my 79 honda or id pay 140 a month for liability on a beater car. Should i just stick with riding bikes

Cheapest reliable car from the 80s-1993?

Looking at a antique auto anything pre 1993 in my state. I'm looking for a car to play around with on weekends use in the winter as a toy. I have a 40 year old honda bike i drive daily looking to have a fun reliable cheaper to maintain car. I'm looking at a 88 crown vic, oldsmobile regancy, buick century from the 80s era. I've seen beat up high mileage volvo 240s in the 1k-2k price range too