Should I buy one?
There's no doubt that the Ioniq Plug-in is a cheap proposition for most buyers. It's competitive at list price and comes hugely well equipped next to its closest rivals for the money. Its 26g/km CO2 emissions mean it falls into the 9% BIK tax bracket for company car drivers, too, so financially it makes an extremely attractive company car.
However, value isn't all about money. A Volkswagen Golf GTE might cost slightly more to buy outright and demand marginally more each month in company car tax payments, but it feels like a more sophisticated package and so ultimately worth the extra. The Golf GTE is far better to drive, is more spacious and higher-quality inside and has a better infotainment system; added together, this makes the Golf GTE the more rounded plug-in hybrid choice.
What Car? says...
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Toyota Prius Plug-in
Hyundai Ioniq Plug-in Premium SE
Price £29,295 (before £2500 plug-in car grant)
Engine size 4cyl, 1580cc, petrol, plus electric motor
Torque 195lb ft
Gearbox 6-spd automatic
Top speed 115mph
Gov't economy (official combined) 257mpg
CO2/BIK band 26g/km/9%
On sale Now
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