Parkers overall rating: 4.1 out of 5 4.1

Miles per pound (mpp) Miles per pound (mpp)

Petrol engines 6.0 - 7.9 mpp
Diesel engines 9.0 - 9.8 mpp
Plug-in hybrid petrol engines 33.4 - 39.5 mpp
Low figures relate to the least economical version; high to the most economical. Based on WLTP combined fuel economy for versions of this car made since September 2017 only, and typical current fuel or electricity costs.
Based on "Weighted" mpg; figures depend on the proportion of miles driven in pure electric mode and may vary widely

Fuel economy

Petrol engines 39.2 - 51.4 mpg
Diesel engines 60.1 - 65.7 mpg
Plug-in hybrid petrol engines 217.3 - 256.8 mpg
  • Petrol, diesel, mild-hybrid and plug-in versions available
  • Plug-in the MPG and CO2 champ
  • Diesel still a happy medium between petrol and plug-in

How much does it cost to run?

The SEAT Leon range appears to do well when it comes to fuel economy. Diesels may be falling out of fashion, but they're still the most economical way to run a SEAT Leon if you don;t choose the plug-in hybrid. All models come with stop-start to minimise fuel usage when stationary, and fuel tank capacity is 50 litres.

MPG and CO2

SEAT expects the 1.0-litre TSI SE Dynamic to be the most favoured by company car drivers - the 28% BIK group at launch may not be the cheapest Leon per month, but it might be deemed worthy of the additional cost for the extra kit provided for driver comfort.

  • 1.0-litre TSI 115: 47.1-52.3 mpg, 123-125g/km
  • 1.5-litre TSI 130: 46.3-52.3mpg, 123-126g/km
  • 1.5-litre TSI 150: 44.8-48.7mpg, 132g/km
  • 1.5-litre eTSI 150: 44.1-48.7mpg, 133-135g/km.
  • 2.0-litre TDI 115: 60.1-67.3mpg, 111g/km.
  • 1.4-litre TSI Plug in hybrid: 217.3-235.4mpg, 27g/km

During our time of testing, the 130hp petrol engine ranged between 45-46.3mpg on a mix of motorway and country lanes. Low-speed town driving saw this drop to figures in the high 30s but it didn’t take long to see these figures rise. The 1.5-litre Evo engine can shut down two of its cylinders to further minimise fuel usage and this happened quite often in our test car, helping pinch the pennies and save fuel when you're cruising. A full tank saw a predicted range of nearly 500 miles, which is jolly impressive for a petrol hatchback of this size.

The highest achiever in terms of mpg is the plug-in hybrid. As with any plug-in the official mpg figures is a pipe dream. On our hour and a half test drive we achieved 73mpg with a full battery at the start. Not bad at all for a mixed route of motorways, a-roads and b-roads.

The pure-electric range is also mostly unobtainable, but not by as much. Officially it'll cover 40 miles between the plugs. Judging by our testing, if you regularly avoid motorways, 36-37 miles should be achievable.

Residual value

According to CAP data, the SEAT Leon will retain 41% of its value after three years or 60,000 miles. That's a reasonable depreciation curve, if you are considering buying your car outright.

How reliable is it?

It's a little too soon to predict how reliable the Leon will be, but the previous model didn't fare badly when it came to recalls with only three official manufacturer recalls going back to 2016 - Two in 2019 relating to the indicators potentially not working properly and the driver's airbag not inflating fast enough. The one in 2016 related to child locks disengaging.

There have only been a small number of owner reviews so far, but all new Leons come with a three-year/60,000-mile warranty.

Seat Leon FR e-hybrid badge

Ongoing running costs

Road tax (12 months) £145 - £155
Insurance group 15 - 27
How much is it to insure?