Ooops, been some time since I posted on here. So what's happened? I still have the car. My concern about oil consumption was well founded. It was a spun bearing. One engine rebuild later. New crank, Cosworth pistons, race bearings uprated oil pump coolant flow mod. Since then it's been relatively ok, relatively apart from the alarm/ immobiliser. It failed the MOT for the first time a couple of Months ago not as I suspected due to rust but a drop link. After getting advisories year after year for rust I sent it off to Colin, the welder to sort it out and repair and respray damage on the rear bumper. This left the Sigma M30. I have issues with this since day 1. If you closed and opened it on the remote it would trigger the immobiliser. Just using the key was fine. However take it to the garage and tell them not to use the remote. they obviously use the remote and I would then be sat in the car trying to start it, normally with the alarm going off and the car refusing to start in the end the only way to get it to comply was to turn the key fully and press the remote button. Thinking at some stage the immobiliser was going to completely immobilise the car somewhere very inconvenient I bit the bullet, the Sigma is now in a box in the shed. I now have central locking and unlocking and the car will start straight up. When the alarm was being fitted I asked him about the tracker that was fitted to these cars, it's a Type UK, that I had read about somewhere. Yes it was fitted but had been disconnected to avoid a catastrophic power drain.