The Tesla Model Y Standard and Fiat Grande Panda E were compared in terms of their actual energy performance on a route starting from Amsterdam. In electric driving, efficiency is closely related to software and energy management beyond motor technology; therefore, both vehicles were tested in similar traffic and weather conditions.
Comparison under real road conditions. In this section, a route combining highways and intercity roads was chosen to maintain standard driving conditions. Wind intensity directly affected and was reflected in the fuel consumption figures. Even in strong winds, the Tesla Model Y demonstrated an impressive consumption of 14,0 kWh/100 km. The Fiat Grande Panda E, on the other hand, recorded a consumption of 20,4 kWh/100 km under the same conditions, consuming approximately 50% more energy than the Tesla.
The differences in vehicle mass and power also affected energy efficiency; the Model Y, despite being approximately 550 kilograms heavier, demonstrated better efficiency. Charging station data for the Fiat was recorded as 20,6 kWh/100 km. Differences between software and range estimation. In this section, it was noted that the Fiat Grande Panda E lacks a trip computer displaying current fuel consumption information. The vehicle offers a fixed range of 296 kilometers after each charge; this fixed value often doesn't fully reflect the actual driving experience. This situation, also seen in other electric models from the Stellantis group, raises questions about the compatibility of fixed calculations with real driving. In contrast, Tesla provides users with a more realistic flow of information through dynamically updated range data.
Test results showed that the Tesla Model Y achieved a range of 428 kilometers, while the Fiat Grande Panda E managed only 215 kilometers. These findings clearly highlight the technological differences between the two brands in terms of energy management and efficiency. 
