Eco-driving (ED) is a valuable technique to reduce CO2 emissions. The gamification approach might constitute a useful opportunity to motivate and foster ED more extensive. The aim of the study was to investigate the impact of ED tip complexity combined with the concept of gamification for electric vehicles (EVs) on subjective assessments and driving data. Thirty drivers participated in an experimental field trial. Three systems were tested in a between-subject design: (1) AVERAGE consumption display (baseline), (2) an average consumption history display with ED tips (CHART) and (3) a system addressing a gamification approach with ED tips (GAME). In general, drivers evaluated all systems positive. There were no significant differences regarding workload, stress, acceptance, user experience and remaining range between the systems. However, the gamified system was rated more distracting and confusing. A trend of higher recovered kilometres can be seen for the gamified system. Although gamified ED systems involve a risk of distraction, their motivation potential seems more pervasive.