As you say, driving conditions are key.
I'm sure it's already on your radar, but for short trips, improving warmup is going to be the lowest hanging fruit. Block heater, grille block, engine blanket, etc. , along with reductions in parasitic loses, such as thinner fluids, higher tire pressure, etc.
Power steering is also a pretty big parasitic loss, but I'd be reluctant to lose it without electric replacement.
Ultimately though, you're not going to be able to compare with others who have more friendly driving cycles.
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