What is the difference between the Audi A1 and A3's engines?

I am planning to buy an Audi A1 but am confused about the engine options. How is the A1's engine different from the A3's? Which one is better for city driving?

The main difference between the Audi A1 and A3's engines lies in power and size. The A1 offers smaller engines with lower power outputs, making it more fuel-efficient and suitable for city driving. However, if you are looking for a more powerful and dynamic driving experience, the A3's engine options may suit you better.

In terms of specific engine specifications, the Audi A1 offers a 1.0L 3-cylinder engine as its base option, while the A3 offers a 1.4L 4-cylinder engine. This means that the A3 has a slight advantage in terms of power and performance. However, if you are mainly looking for a compact, fuel-efficient car for city driving, the A1's engine may be the better choice.