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|I think the problem with the Getrag 235 as fitted to the BMW 2002 is that it has a fixed bell-housing so it would not mate to the 907 engine block without an adaptor plate. As far as I know, the only other Getrag gearbox which would be an easy fit would be the Getrag 265 as used in the Lotus Eclat / Elite S2.2, as this had a detachable bell-housing. While this gearbox and its 907 bell-housing are available (albeit rare) in the UK, opinions vary as to whether it was a better or worse box than the W58 which came shortly afterwards in the Lotus Excel. I have not been able to find out whether Lotus started using the W58 because it was intrinsically a better gearbox or simply because it became cheaper and more available as soon as Toyota had acquired a stake in the company. Maybe Tim Engel can comment?