You don't want to beat on your DD too hard, so you don't want to use it for autocross, trackdays, or rallycross. As a solution, you buy a cheap beater solely for fun. What would you pick? (Must be Under $5k.)
To prove that your car is under $5k, you must provide an example (If you can't find one, I guess I'll take your word for it)
I've thought about this for a long time and have multiple answers myself, but this one probably makes the most sense. Durable, easy to get parts for, and great for autocross, the track, or even rallying completely all whilst completely stock.
I look forward to interesting responses in typical Oppo fashion.