I have a Tornado BB (which is basically an s30, just no slide carb)
I have to say it is a fun car good to start with (i did!)
note- I used the Traxxas REVO as a comparison of a high priced but similar car from a top brand.
Pros - 2 speed transmission
4 wheel drive
Sturdy if you use an extra worm screw to secure the pipe in place.
Cheap. This is a biggie. Tornado = $165, Traxxas REVO (basically same thing with big engine, more convinience features (reverse gear, ez start) = $430. Droping a big Picco engine into a tornado only adds $200 or so.
Cons - Not as cool looking. The inside of the REVO looks a lot cooler - Revo Overhead Tornado Overhead
Common leaks in the silicone coupler of the exhaust pipe fill your car with oily grime. It seams that the rear-facing pipe of the Revo wouldnt have that issue
Smallish output engine. Not that big of an issue, replacement is easy and its plenty big enough to have lots of fun with!
Great car for the price!
I highly reccomend it for weekend bashing (not racing)