My first sports car was a Porsche 914, too... very low-buck! I think I paid $1,500 (or less!) and was good friends with the owner of a restoration shop, so we immediately did a bunch of structural rust repair so it wouldn't fall apart going down the road, but it was still a bit flexy and had a bit of non-structural rust. It was a 1975 with the big bumpers and 1.8l engine with dodgy fuel injection, at least mine was - it would generally run fine but sometimes took a while to get started.
We treated it like a "2+1" car, sometimes a third person would sit on the center cushion and try to keep their legs out of the way of the shifter. The "dog-leg" shift pattern was fun for something different. The practicality of the car was incredible - sometimes we'd go camping and I'd take the spare tire from the front and lay it in the back trunk, cram stuff around it, clip the top in above all that, then you could fit a full-size cooler and more in the front trunk. It's so big that one time I climbed inside (I'm 6'2" for reference!) and it was possible for me to fit entirely in there and have it closed. I also installed five-point Sabelt harnesses in the car, which got a lot of attention, and a Momo steering wheel.
It was a really easy car to drive and a great first sports car. I then had the chance to buy my friend's Elan S2 and that was that! We pulled everything of value off the 914 and hauled the carcass to a scrapyard. I still have a few parts lying around my house and my parent's garage. The Elan is a MUCH more special car in many ways, and I was grateful to be rid of that roll bar behind me and have a REAL open car! Now I've got a targa again in my Elise but I still love the wide-open feel of the Elan and need to get back in the garage and get it back together!
2013 Subaru BRZ, 2005 Elise, 1965 Elan S2