I'm a huge fan of wagons, or estates as they're also referred to. From old school Mercedes-Benz models to that super sexy Volvo 850R (which HAS to be in yellow), they've always looked just right. Sure there are smaller cars in wagon guise that are horrible in their proportions, like the MkIV Golf Estate and the Opel Astra Estate - yuck.
BMW has had some interesting concepts over the years, some of which nearly made it to production. They just released a series of pictures showing some of the cars off, and the BMW M3 Concept wagon is among them. I'm sure you'll agree with me, fan or wagons or not, this is an M3 that should have been. Look at the pics, just look at them. They do funny things to my nether regions.
It was an E46 M3 in every way besides having an ass that would make Beyonce jealous, so there's no point letting you know about all the tech specs. If you're unfamiliar, Google is your friend. I will add in a piece from the BMW press release though, just for info sake, after that, just enjoy the pics, I know I did.
A feasibility study under real-world conditions: the BMW M3 Touring (2000).
The BMW M3 Touring prototype likewise materialised because a production model was under consideration. The M3 Compact was made available to journalists for testing in order to both project an image and sound out customer interest. But the M3 Touring served entirely in-house purposes. “This prototype allowed us to show that, from a purely technical standpoint at least, it was possible to integrate an M3 Touring into the ongoing production of the standard BMW 3 Series Touring with very little difficulty,” explains Jakob Polschak. “One important thing we needed to demonstrate was that the rear doors of the standard production model could be reworked to adapt them to the rear wheel arches without the need for new and expensive tools.” Once it had passed through the assembly line, the M3 Touring required only minimal manual follow-up work to fit the M-specific add-on parts and interior details, for example.