The 2025 Audi Q3 is powered by a I-4 DOHC 16V Direct Injection Turbocharged engine that is capable of a maximum horsepower of 228. However, the 2025 Alfa Romeo Tonale PHEV’s 1.3L Turbocharged I4 PHEV engine gets a maximum horsepower of 285. This makes it by far the stronger of the two, which alone gives it the edge over the 2025 Audi Q3.

The 2025 Audi Q3 has a combined fuel efficiency rating of 9.5 L/100 km. This, again, is beaten by the more fuel-efficient 2025 Alfa Romeo Tonale PHEV, which not only can go for 53 kilometres on electricity alone, while having a combined fuel efficiency rating of 8.1 L/100 km. This means that on top of being able to travel around on just electricity, you also get far more fuel efficiency when you do use any of the gas in the tank.

Both Alfa Romeo and Audi offer up luxury and technology features that are sure to please, but if you’re looking for which SUV is the most fuel-efficient and has the strongest engine, the 2025 Alfa Romeo Tonale PHEV is the clear choice.