• 353.1mpg WLTP, rather less in reality
• 53-mile EV driving range
• CO2 as low as 12g/km

What are the running costs?

On paper, Toyota claims the Prius Plug-in can return up to 353.1mpg and emit just 12g/km of CO2 – provided you charge it regularly and drive carefully. In reality, expect closer to 70mpg with regular charging, and over 60mpg even without plugging in. That’s still an impressive performance, managing 9.0 - 10.1 miles per pound.

The 53-mile driving range is among the best in class, meaning many drivers can do their commute without waking the petrol engine. It’s a strong performer for Benefit-in-Kind (BiK) tax, too, with low emissions making it attractive for company car users.

Just bear in mind the slow charging speed – 3.3kW – means you’ll need to plug in overnight for a full charge. There’s no rapid charging option.

Servicing and warranty

Service intervals are every year or 10,000 miles, whichever comes first. Toyota offers fixed-price servicing plans to help manage costs, and the dealer network is widespread and trusted.

The standard warranty is three years or 60,000 miles, but Toyota Relax extends this up to 10 years or 100,000 miles if you service within the network. It’s one of the best warranties out there.

Battery cover is also included under Relax, with a health check carried out during each service. That gives good peace of mind for plug-in buyers worried about long-term costs.

Reliability

• Excellent reputation
• Long warranty
• Strong build quality

Toyota hybrids have a great reputation for reliability – and the Prius Plug In looks set to follow suit. Our long-term test car ran faultlessly, with no mechanical issues and no annoying tech gremlins.

The battery system is well proven, and Toyota has decades of hybrid experience under its belt. We’ve heard of previous-gen Prius cars covering 300,000 miles on their original packs – and this one feels every bit as robust.

Build quality is solid, refinement is high, and everything feels like it’ll last. That long warranty just sweetens the deal.