If you want a toy project then get an RX-8 is what I tell everyone. Rotary engines need their oil checked every 2 fill ups as a downside b/c it burns it by design. The upside is they're rev monsters that love turbos. Small light engines easy to swap as well. The best part is they're cheap as fuck b/c most owners never knew to check the engines and burned em into the ground. The bodies and suspension are minty and easy to find. The engines are easy to rebuild.