3DR= MK1 Cosworth
There are quite a few (On a MK2 at least) MK1 should be similar.
At a total guess, I would say they are around 1 watt? I am excluding warning lights in this statement, which I think may be slightly more powerful (Random guess, 3 Watts, perhaps?) as I think these are brighter.
Had my bulbs out no problems at all.
Martin