The Ferrari J50 is a heavily revised 488 Spider for the Japanese market

The Ferrari J50 is the latest small-batch supercar you'll probably never see on the road.

Its 3.9-liter, turbocharged V8 engine puts out 680 horsepower, 20 hp more than the 488 Spider on which the J50 is based.

It's hard to see any 488 Spider in the J50, because so much of the exterior was changed.

The interior's a bit closer to the 488 Spider, but again, it's covered in all sorts of unique bits.

The J50's carbon fiber targa top splits into two pieces and can be stowed behind the seats when not in use.