The fleet average fuel consumption for the Fiat Panda is quite a bit higher than for the 1.2 Mitsubishi Mirage.
https://www.spritmonitor.de/en/overv...10&powerunit=2
https://www.spritmonitor.de/en/overv...=1&powerunit=2
From Spritmonitor
Mirage 5.1 l/100 km average
Panda 6.28 l/ 100 km average
Hence on average the Fiat Panda consumes 23 % more fuel than the Mitsubishi Mirage.
From an environmental point of view, this is what really matters!