Over the course of the last few weeks, we've been constantly updating our comprehensive list of debuts slated for the Tokyo Motor Show, but one glaring omission continually jumped out at us: BMW. We know they'll be showing off the M3 Sedan, but it was rumored that something else would grace the Bavarian's show stand. Automotive News finally shed some light on the mystery model, but it doesn't reveal much.

BMW will be showing a concept built atop the 1-series platform, but when AN quizzed a BMW spokesperson, all they would say is that the unnamed concept won't be the X1 mini 'ute. Our first suspicion was the 1-series convertible, but that's far too dull for Tokyo. We'll let the relentless speculation begin below.

As for the rest of the Germans, we know Audi is bringing the A1 concept to the show, which should be close to the production model set to debut in 2009, while Volkswagen will be releasing its first Up! variant in the form of a five-door minivan concept.

We'll be on a plane to Tokyo this time next week, so expect more to follow soon.

[Source: Automotive News – Sub. Req.]