BMW i3 Rex Bigger Fuel Tank Enhances Range and Convenience
In an era where every mile counts, the BMW i3 Rex stands out with a carefully engineered bigger fuel tank that redefines practicality for eco-conscious drivers. Beyond its compact, stylish design, the i3 Rex now delivers significantly improved fuel capacity, enabling longer journeys without frequent stops—ideal for daily commutes and weekend trips alike.
The larger fuel tank, seamlessly integrated into the i3 Rex’s lightweight architecture, maintains the vehicle’s signature efficiency while expanding its range by up to 15%, depending on driving conditions. This enhancement is especially valuable for urban drivers navigating congested cityscapes or suburban travelers seeking reliability.
Beyond raw range, the bigger fuel tank supports consistent performance and reduces range anxiety—a common concern with electric vehicles. Combined with BMW’s advanced energy management systems, it ensures optimal power delivery without compromising sustainability.
For those prioritizing convenience, the i3 Rex’s redesigned fuel system offers a smoother, more predictable driving experience. The added fuel volume enhances confidence, making long-distance travel effortless and enjoyable.
Whether you're commuting to work or exploring new destinations, the BMW i3 Rex with its bigger fuel tank proves that innovation and practicality go hand in hand—delivering performance, efficiency, and peace of mind in one seamless package.
Embrace the future of urban mobility with the i3 Rex, where smarter engineering meets everyday practicality. Discover how this upgraded range capability transforms your driving experience today.
It's my understanding that many of the F1 fuel tanks are bladders which wouldn't work on the i3 since it uses a pressurized fuel tank. Putting one further forward would put it into the crush zone, and not likely a great idea. Looks like 3 people have done it on the BMW i3 World Wide group on FB by adding an additional fuel cell in place of the frunk storage area.
This limitation has prompted some users to modify their i3 with an additional gas tank, stored in the compact trunk space at the front of the car and piped into the range extender's fuel line. One of the great perks of the i3 is that despite having a fairly low electric range, it was available with a range extender to quell range anxiety. However, to qualify as a zero-emission vehicle in America, BMW had to artificially restrict the fuel capacity of the range extender's tank.
With the right BMW i3 coding, it's easy to recode your i3 REx and flexibly activate battery charge hold mode. And to keep you driving even longer, get a gas tank capacity upgrade. This document provides comprehensive technical specifications and detailed information about the fuel system of the 2014-Present BMW i3, including fuel type, fuel tank capacity, fuel delivery system, and related components.
It covers both the internal combustion engine (REx) and electric drivetrain configurations, ensuring accurate and up. The BMW i3 is an electric vehicle that can be optioned with a nifty range-extender engine which runs on gasoline - a series hybrid set up exactly like the new Ram Ramcharger. It's a great way to avoid the problem of slow EV chargers on long trips, save for one problem-it has a tiny fuel tank that lasts maybe an hour or two at best on the highway.
That's led several owners to develop. Recent developments reveal that the fuel tank capacity of the i3 REx was not physically reduced, but rather controlled via software. This was accomplished by shutting off the fuel pump at 1.9 gallons.
In the US, the fuel tank was restricted to 1.9 gallons so the i3 REx can qualify for incentives. The Range Extender could add anywhere from 40 to 80 miles of range based on the driving mode. The BMW USA builder page claims a US i3 Rex can reach 185 miles of range.
So is the USA site wrong, or is the Rex tank size actually the same in the US version as it is in Europe?