LR used to factory fit 2.8 BMW petrols to South African 90's, Rogers of Bedford used to import them to the UK, a very rare beast.
Beat me to it again
Was just gonna say LR offered the BMW lump for export markets
The BMW engined Defender was developed in South Africa and the prototypes were to NAS as there was a plan to sell them in USA too. However, they were only fitted to South African assembled Defenders, built at the LR Factory in Rosslyn. They were exported to neighbouring countries, but nowhere outside Southern Africa, except for unofficial channels as mentionned above.
It replaced the V8 from about 1997 and was discontinued when the TD5 was introduced in 1999. No more petrol engined Defenders were made after that. The BMW engine was fitted in all variants of the Defender, except for the 130 and 110 hicap. Even the 110 hardtop and pickup were supplied with it as an option to the 300TDi. A 110 CSW 2.8i is a good long distance tourer and doesn't have too much disadvantage off road, despite the lack of low end torque. Thirsty though.