How much does it cost to convert a modern Jaguar (S-Type, XJ) to electric?
About $53,400 to $94,000 all-in at a professional shop for roughly 200 miles of range (2026 prices, US labour rates). Usually a custom build.
Cost by range
| Range | Battery | All-in estimate |
| 100 miles | about 36 kWh | $44,400 – $81,900 |
| 200 miles | about 72 kWh | $53,400 – $94,000 |
| 300 miles | about 108 kWh | $62,300 – $106,000 |
For a 2005 Jaguar S-Type that runs and has a solid body, at a US shop. Not a quote: real shops bid on Swaxcar, and the bidding finds the real price.
Where the money goes (200 miles)
| Battery, about 72 kWh for ~200 milesA mid-size car gets about 3.1 miles per kWh. Priced on 2026 conversion-ready modules. | $16,600 – $22,300 |
| Battery boxes, battery management and high-voltage wiring | $2,000 – $4,000 |
| Motor, controller and mounts | $9,000 – $14,000 |
| Charger, DC-DC, heater, gauges, vacuum/steering pumps | $3,000 – $5,000 |
| Gearbox adapter or direct-drive setupDepends on whether the shop keeps your gearbox. | $1,200 – $3,500 |
| Making the modern dash, ABS and airbags work with the new motorCars from 1990 on have computers that expect an engine. | $1,500 – $4,000 |
| Labour, roughly 160–240 hoursCustom work: the shop designs the mounts and battery boxes. | $16,000 – $33,600 |
| State inspection and registration paperwork | $200 – $600 |
| Contingency for surprises (8%) | $4,000 – $7,000 |
| All-in estimate | $53,400 – $94,000 |
Kits and builders
There is no off-the-shelf kit, so expect custom battery boxes, motor mounts and work to keep the modern dash, ABS and airbags happy.
No off-the-shelf kit is known for this car, so you want a shop with custom-build experience. Browse EV specialists.
Questions owners ask
How much does it cost to convert a modern Jaguar (S-Type, XJ) to electric?
At a professional shop in the US, expect about $53,400 to $94,000 all-in for around 200 miles of range on a car that runs and has a solid body. A 100-mile build starts near $44,400; 300 miles can reach $106,000.
Is there a conversion kit for the modern Jaguar (S-Type, XJ)?
Usually a custom build. There is no off-the-shelf kit, so expect custom battery boxes, motor mounts and work to keep the modern dash, ABS and airbags happy.
What is the most expensive part?
The battery. For 200 miles a modern Jaguar (S-Type, XJ) needs about 72 kWh, which is roughly $16,600 to $22,300 in 2026. Labour is usually second.
What makes the price go up?
Rust and a car that doesn't run. With some rust and a non-running car, the same 200-mile build is closer to $57,100–$108,000. Keeping the manual gearbox adds an adapter; modern cars need extra work on their electronics.
How do I get a real price?
List the car free on Swaxcar. EV conversion shops bid against each other on price, timeline and shipping for 7 days, and you pick the winner. You are never obliged to accept a bid.
Get real bids for your modern Jaguar (S-Type, XJ)
Paste your VIN, answer three quick questions, and get a free estimate for your exact car. Then shops compete for the job.
Other cars
VW Beetle · Porsche 911 · classic Ford Mustang · Ford Bronco · VW Bus · Chevy Camaro, Chevelle or C10 · Ford F-100 · Toyota Land Cruiser FJ40 · Land Rover Defender · classic Mini · MGB · Jaguar E-Type · Ford Model A