Parkers overall rating: 4.1 out of 5 4.1

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

Petrol engines 5.6 - 7.7 mpp
Diesel engines 9.8 - 10.8 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.

Fuel economy

Petrol engines 26.4 - 36.2 mpg
Diesel engines 48.7 - 53.3 mpg
  • Diesel cars will be the cheapest to run
  • More powerful petrols also impressive
  • Quadrifoglio not overly thirsty when pushed

Diesel models are going to be most popular and with claimed fuel economy of 67.3mpg, they’re not going to break the bank. The CO2 output of both is low, so it should be stood in good stead for competitive BIK tax.

The 2.0-litre, 200hp petrol version has fuel economy of 47.9mpg, dropping barely a single mpg if you upgrade to the 280hp version.

You can expect the Giulia Quadrifoglio to cost more to run, with a claimed economy of 34.4mpg. We found the low 30s to be achievable, or 20-odd when really pushed.

You’ll want a diesel to get the lowest emissions in the Alfa Romeo Giulia line-up. It doesn’t matter which, though: they’re all the same at 109g/km of CO2, dipping well under the 130g/km write-down allowance and thus likely to make its way onto many a fleet manager’s car list.

The 2.0-litre, 200hp petrol model emits 138g/km, so less than ideal as a company car, and the 280hp version only puts out 3g/km more.

The Quadrifoglio version emits 189g/km, which is impressive for a car of such performance.

Reliability

  • Alfa Romeo has not been a byword for reliability
  • Still, this is a new car from the ground up
  • Is that reassuring or alarming? Only time will tell…

There’s a big question mark here. Alfa Romeo’s reliability record is best described as ‘eventful’ and the Giulia is that rare thing these days: an all-new car from the ground up, including its engines. What this means is it’s an unknown quantity.

The good news is there haven’t been any major recalls yet and Alfa Romeo fan forums have reported only a few niggling electronical issues. Still, it’d be worth watching this space.

Ongoing running costs

Road tax (12 months) £20 - £475
See tax rates for all versions
Insurance group 22 - 49
How much is it to insure?