You can use the zeitronix software and a ZT-3 to log afr's, rpms, speed, MAP, egt, TPS and 2 temp, or pressure sensors.

Edit: I just looked at DrewTech's website and the CarDAQ should do everything that the DashDAQ does....it is however pretty expensive. $100 for the software and $500 for the cable. Plus, I am not sure if you interface any of the add-on modules to the CarDAQ (IE widebands, EGT, map, temp and pressure sensors).