Master Smacker Kit
 

The book is the worst ever. The diagrams are ok but there's no write up.
If anybody is going to get one then build the steering bits first. You'll need to file out the brass balls so the screws will go through. And don't forget to grease the diffs.
Take care with the screws too as there's no mention of the length to use.
Other than that it goes together well.

The ansmannstore.com website also has parts under the Smacker title but the part numbers seem to be all different to the parts in the back of the book. (Unless there's another model called Smacker)
Fusion Hobbies has the right list.