the thing about cars like these, they have a very flexible gear ratio at lower speeds. If you cruise around in town alot, you'll have a VERY nice FC.

If you speed on highways, different story. They basically suck after 60km/h.

Applies for manual only.

We're talking about how many RM/KM you can get from the car in general, not how many RM/KM you can get at specific speeds.

At lower optimized speeds, lower speed still thrashes high speed.

My point is that they get horribly inefficient at high speeds due to the low speed optimization.

Same case with savvy, although savvy still kick ass at 120km/h

it's simple, you just have to know the lowest speed you can get whilst using the highest gear and the lowest smooth rpm. It's typically 40km/h or lower on fifth gear cruising around town for my saga manual.

Once you go over 60km/h, the rpm rises and the engine becomes less efficient. For saga's case, you nearly 4k at around 120km/h, that's inefficient.

While they may do good at lower speeds, they might not do as well at higher speeds.

torque efficiency mainly.