Scorpio N

For a mix of daily city driving and weekend off-roading, the diesel makes the stronger case.
The torque advantage is what matters most here — up to 400Nm available low in the rev range means the diesel pulls cleanly in slow trail situations without needing to work the engine hard. Hill climbs, rocky stretches, loose surfaces — these conditions suit a diesel's torque curve far better than a petrol's power band. City mileage in the 12 to 14 km/l range is reasonable for a vehicle this size, so the daily commute does not punish you either.
The 2-litre petrol is genuinely powerful at 203 PS and it is a more enjoyable engine when the road opens up. Where it falls short is low-speed crawling on trails — it is not built for that kind of work and it shows when you are picking your way through technical terrain at walking pace.
If the off-roading is serious — Himalayan trips, forest trails, anything that demands low-speed control and consistent pulling power — go diesel, Z4 or Z6 with 4WD. If the off-roading is mostly light gravel roads and the occasional forest track, the petrol is fine and the driving experience in the city is arguably more pleasant.
Most buyers doing both will find the diesel more capable across the full range of what they are asking the car to do.