Hi,
The more expensive set of leads will connect to just about any Fiat ECU with MES as long as the car has a 16 pin OBD socket.
The single lead will connect to the "standard" port to read fault codes and the engine ECU on most cars.
Robert G8RPI.
I purchased full version of mes and all of the leads.
Although a little pricey it has more than paid for itself!
Airbag lights, ABS issues and other gremlins are a thing of the past now. Great bit of kit for diagnostics!