The trend of converting classic cars to electric power is gaining momentum, particularly in the UK, driven by desires for modern performance, exemption from increasing charges on combustion-engined vehicles, and environmental benefits. Jaguar's dedicated Classic division offers the E-Type Zero, a converted 1960s E-Type, as a complete car for around $850,000 or as an upgrade for existing owners. Aston Martin also provides an electric powertrain for its rare DB6 Mk2 Volante. Richard Morgan's Electric Classic Cars, a leading converter, caters to an international clientele, with conversion costs ranging from around $20,000 for smaller models like Minis or Fiat 500s to over $50,000 for larger vehicles like original Range Rovers. These conversions offer quieter, faster, and smoother drives, vastly improved reliability, and significantly lower running costs.

While some conversions can be costly, they often result in a substantial increase in the car's value. For instance, an electric MG MGB Roadster by RBW, with an original cost of around $5,000, can command an asking price of $108,000, representing a 2,000% increase. Similarly, less valuable classics like the Nissan Bluebird and Rover Mini can see value jumps of 700% after conversion. Professional conversions, such as a 1970s BMW CSi, can reach around $90,000, with much of that cost attributed to restoration. The most expensive conversions can exceed $180,000, depending on the car's size, desired performance, battery pack size, and additional features like air conditioning or suspension upgrades.

Electric Classic Cars designs its conversions to be fully reversible, using existing bolt holes for battery packs and attaching electric motors to gearboxes, often retaining the ability to change gears. However, customers rarely request the original components back, often selling them to offset conversion costs. A Ferrari converted with a Tesla Model S powertrain and LG Chem battery pack, costing $60,000, saw its 0-60mph time drop from 7.8 seconds to 3.8 seconds, with a range of 150 miles. While high-end sports cars are viable candidates, the current battery technology's range makes conversions better suited for smaller cars used for city driving, as exemplified by London Electric Cars offering conversions for Morris Minors, recommending a budget of at least $20,000. Another example is the Swind E Classic Mini, priced at $79,000, offering a 125-mile range and a 0-60mph time of 9.2 seconds.