For information and for the benefit of those who do not know, the T-300 will work on the OBD and OBD2 systems on a vast range of marques and models. Not just MGs and ROVERs. You name it it will do it.
Initially expensive ( they can be obtained at less expensive prices now ), used mine on all my own and family's cars as well as those of friends and work colleagues etc. So it has already more than paid for itself as the costs of a visit to a pro-garage for a diagnostics check soon mounts up with so many cars in the family. Last one some years ago cost my son £60 including the VAT.
I see T300's going for 120-150 USD at the moment, not in a rush to get one, but i am keen on checking for error codes.