BMW Kept This Hatchback A Secret For Decades

BMW considered adding two rear doors to the E36 Compact, but the unusual 316i prototype never made it to production.

BMW M3 Compact (E36)

Adrian Padeanu

By: Adrian Padeanu

Oct 20, at 3:14am ET

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The 3 Series is the quintessential BMW sedan, but for about a decade, it also came as a hatchback. The original 3 Series Compact was essentially the 1 Series before the 1 Series, offering a smaller, more affordable way into BMW ownership without abandoning rear-wheel drive. However, while the E36/5 Compact arrived with three doors, Munich apparently considered giving it two more.

Now, BMW has pulled a mysterious five-door prototype from its vault, revealing an unusual piece of brand history that never made it to production. Meet the otherwise humble 316i Compact, an experimental E36/5 variant that adds two rear doors to the familiar hatchback body style. Unlike the better-known three-door model, this one-off prototype remained out of public view for decades before BMW Classic finally showed it off.

The car started life in Boston Green, with a cloth interior, an automatic transmission, and heated seats. It has since been repainted red, but some unusual details suggest it was never intended to be a showroom-ready production model. For example, the car has glorious crank windows despite having electric window switches on the center console. This curious combination hints at the prototype's experimental nature.

BMW's Five-Door Hatchback That Never Happened

As for why it never made it to production, BMW hasn't said. An educated guess would be cost. Adding another pair of doors would have required extra engineering and tooling for a car whose main selling point was affordability. A five-door body also would have overlapped with the regular 3 Series sedan and Touring, both of which already catered to buyers who needed extra practicality.

When the second-generation 3 Series Compact arrived in the early 2000s as the E46/5, it also skipped the rear doors. It was short-lived, and BMW sold it for only about three years. The company didn't even bring it to North America, where its predecessor hadn't sold well. BMW likely worried the newer model would struggle to find buyers, so it didn't bother bringing it across the Atlantic.

BMW didn't introduce a production five-door hatchback until 2004, when the E87 1 Series debuted. The original 1 Series effectively picked up where the 3 Series Compact left off, giving buyers a smaller, more practical alternative to the 3 Series sedan while retaining rear-wheel drive. Initially offered as a five-door hatchback, it later spawned a three-door version in 2007. In hindsight, the forgotten E36/5 prototype looks like an early attempt at a formula BMW wouldn't put into production for another decade.

BMW M3 Compact (E36)

The Other E36/5 Left On The Cutting Room Floor

If you know your BMWs, you'll remember that this isn't the unique 3 Series built during the E36/5 era. The lead image we chose for this article shows the elusive M3 Compact, which, like the five-door 316i, never made it to production. At least the company kept both cars rather than sending them to the scrapyard. The M3 Compact has drawn plenty of attention over the years, but the newly revealed 316i might be the bigger surprise, precisely because so few people knew it existed.

In a way, both cars have spiritual successors in the 1 Series and its M Performance version. However, today's M135i is an entirely different animal, as the hot hatch is based on a front-wheel-drive platform and comes standard with xDrive. Its ancestors used rear-wheel-drive architectures, much like virtually all BMWs were before the 2 Series Active Tourer minivan arrived in 2014 with a front-wheel-drive layout.

Here Are Other BMWs That Never Made It To Production:

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The discovery also makes you wonder how many other one-off prototypes BMW is hiding in its vaults. For every concept car the company has officially shown, another forgotten experiment may never have made it beyond the engineering workshop. A more practical Compact was apparently on the table decades ago, so what else did BMW consider before deciding against it?

Somewhere in Munich, an even crazier M car or an entirely different take on a familiar nameplate might be waiting to see the light of day. The 3 Series Compact might not be the most beloved chapter in BMW's history, but this five-door prototype proves that even one of the brand's less celebrated models has a few fascinating secrets left to tell.

Source: retrogarageofficial and bmwclassic / Instagram

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