zzdcar
Home
/
Reviews
/
Automobile information
/
BMW’s EVs trace their roots to this innovative 1972 prototype
BMW’s EVs trace their roots to this innovative 1972 prototype-January 2024
2024-08-27 EDT 14:03:14

In the 1960s, when the electric car looked more like a far-fetched science fair experiment than a relatively convenient way of moving people and goods, investing in electrification made little sense. And yet, its the early, rudimentary prototypes that paved the road for the current crop of EVs. For example, BMW displayed a stunning amount of foresight when it built a pair of electric 1602s and tested them during a major sporting event.

BMW launched this ambitious project in 1969 and planned to have a running prototype ready in time for the 1972 Olympic Games, which were set to take place in its hometown of Munich, Germany. Developing an electric car from scratch was ruled out for cost reasons.

The brands range was much smaller in the 1960s than today, so picking the 1602 as a starting point was almost a no-brainer. Its the predecessor to the modern-day 3 Series, and it was a popular model that played a sizable role in establishing BMWs image as we know it today.

Previous Next 1 of 3

BMW

BMW

BMW Power for the electric 1602 came from a DC shunt-wound electric motor provided by Bosch and mounted in the space normally occupied by the manual transmission. It was zapped into motion by 12 lead-acid batteries with a total capacity of 12.6-kilowatt-hours. BMW couldnt buy an off-the-shelf battery pack from a supplier, so it did what it could: the batteries were standard 12-volt units mounted on a pallet. But as primitive as it might sound, the seeds of modern EVs had already been planted and the drivetrain featured a regenerative braking system.

The pack weighed about 770 pounds. For context, the standard 1602 tipped the scale at roughly 2,070 pounds. The added mass severely compromised performance: reaching 31 mph from a stop took eight seconds, and with enough tarmac, you could eventually get to a top speed of 62 mph. Lead-acid batteries arent as dense as todays lithium-ion batteries, so range was dismal: 19 miles in city traffic and up to 40 miles when driving at 31 mph. The charging time was long enough that it made more sense to swap in a fully charged replacement than to wait.

Previous Next 1 of 3

BMW

BMW

BMW These were less-than-glittering figures, but they represented the best that could be done with the technology available at the time. Converting a 1602 to electric power was nonetheless an achievement that BMW was proud of. The company built two prototypes, and members of the organizing committee used them to get around during the 1972 Munich Olympics. The EVs also served as camera cars for various events and as support vehicles for the marathon. Selling a regular production version of the car to the public was entirely out of the question due to the dauntingly experimental nature of the project, however. At least one prototype remains, and its sometimes displayed in the BMW museum.

Previous Next 1 of 2

BMW

BMW BMW didnt stop there. Leveraging the lessons learned during the 1602 project to make improvements, its engineers continued developing electric technology in the 1970s and the 1980s. Built in 1975, and largely kept secret, the follow-up to the 1602 was based on the LS and powered by a DC-series electric motor linked to 10 lead-acid batteries. Advancements included a charging system with an automatic shutoff mechanism. EV owners take this feature for granted in 2024, but it was considered a game-changing innovation nearly 50 years ago.

In hindsight, the 1602 prototype set BMW on the path to electrification. Electric technology has improved significantly over the past five decades. The 2025 i4 boasts up to 536 horsepower, up to 277 miles of driving range, and takes 3.7 seconds to reach 60 mph from a stop.

   Editors Recommendations

Comments
Welcome to zzdcar comments! Please keep conversations courteous and on-topic. To fosterproductive and respectful conversations, you may see comments from our Community Managers.
Sign up to post
Sort by
Show More Comments
Automobile information
Mercedes-Benz A-Class Price revealed
Mercedes-Benz A-Class Price revealed
Prices for the new Mercedes-Benz  A-Class which is due in South Africa in April 2013 has been revealed. A select number of journalists from the financial sector attended the company’s Annual Business Results conference at the Mercedes-Benz East London plant, where they were privy to a sneak preview of the new...
Jan 9, 2025
Mercedes-Benz A 45 AMG set for Geneva Motor Show debut
Mercedes-Benz A 45 AMG set for Geneva Motor Show debut
The Mercedes-Benz  A 45 AMG has been added to the range of unique high-performance AMG vehicles. The entry level A-Class hatchback with full AMG features will make its debut at the Geneva Motor Show which kicks off on 5 March 2013. Mercedes-Benz A 45 AMG is dynamite in a small...
Jan 9, 2025
New Qoros 3 Sedan to premiere at the 2013 Geneva Motor Show
New Qoros 3 Sedan to premiere at the 2013 Geneva Motor Show
The Qoros 3 Sedan will debut at the 2013 Geneva Motor Show on 5 March, under a new automotive brand known as Qoros. The brand will use the show to introduce itself to the world and launch the 3 Sedan as well as two other concepts, the Qoros 3...
Jan 9, 2025
Citroen DS3 range expands with entry level model
Citroen DS3 range expands with entry level model
Citroen has expanded its DS range with the addition of the Citroen DS3 VTi 82 Design which represents a new entry-point to the range. The Citroen DS3 VTi DS3 82 Design introduces Citroen’s PureTech petrol engine technology which delivers greater levels of efficiency with less impact on the environment....
Jan 9, 2025
Audi A1 gets Amplified package
Audi A1 gets Amplified package
The Audi  A1 will now be offered with the Amplified package which combines popular customisation features into a single package. The Amplified package is based on the Ambition line with a choice of four engines for both the three-door A1 and the five-door A1 Sportback. Audi A1 Amplified package enhances...
Jan 9, 2025
Alfa Romeo Gloria concept for Geneva Motor Show
Alfa Romeo Gloria concept for Geneva Motor Show
The Alfa Romeo Gloria concept will be showcased at the 2013 Geneva Motor Show on 5 March 2013. The Gloria concept was developed by the European Design Institute (IED) of Turin with the assistance of the Alfa Romeo Style Centre where young car designers were tasked with ‘conceiving an...
Jan 9, 2025
Copyright 2023-2025 - www.zzdcar.com All Rights Reserved