Your laptop does not already have that connector on it.
Yes, you're laptop as a USB and DB-9 connector on it, but not the hardware to convert CAN messages from your car directly to your computer.
You need to read a whole lot more on ecuproject about the CANUSB.
Yeah, T5.2 its -.3 better then the rest.
1989 900 SPG: Trionic 5(stg1), Aero seats, TD04-15G, 3" Turboback. SOLD
1993 9000 Aero: 3"Turboback, T5Suite Stg.3