Converting a Classic Lotus Esprit To Electricity
When is it OK to convert a classic? This is a question that comes up often in my circle of classic car aficionados. A Lotus Esprit is both an attractive car and a frustrating one, depending on which series you own. The early version kept the Gandini style resolutely intact and even supercar’ish but the Renault mechanic underpinning, no matter how much it was reworked simply didn’t match the expectations the design offered. Later versions had beefier drivetrains but the style was lost in vulgar US forced bumpers and other atrophied aerodynamics. None the less, a Lotus still remains an interesting and attractive electric conversion prospect.
Curious Classic Conversions. Over the few years we’ve seen very interesting electric conversion projects. Some smart, some shocking and others just out right puzzling, they all should make us wonder about the reasons behind. Case in point, converting an old GEO Metro to electricity. It’s smart, fairly simple and you can do it on the cheap. Other older cars and collectables present a different challenge. While there are plenty of under-appreciated 70s and 80s cars, they make a valuable case for a conversion. I’m still toying around converting my 1974 Alfa Romeo Spider to electricity but the continuous drop in Lithium-ion price makes me revisit my options every few months.
Then, there are the classic conversions that presents a serious dilemma. For instance, a year ago I wrote on another news outlet how a few high school students in Kansas City took a 1977 Lotus Esprit with the intention of converting it to electricity. The MINDDRIVE, the brainchild of retired Kansas City architect Richard Stephen Rees, effectively converted it and a year later it was driven coast-to-coast, proving once again EVs can cross from sea to shining sea.
Technically Speaking. The original internal combustion engine was removed and replaced with 30, 3.2-volt Li-ion batteries using a chain-drive motor. Performance wise, the team calculated the electric Esprit averaged 218 MPGe at 40 mph and 138.6 MPGe at 60 mph.
You can see the conclusion of that particular story below here.