911's vary slightly across the models too, 991 ranges from 3.4 up to 4.0 for the RS
As do the Fairlady Z's. 3.5l for the standard, 3.8l for the RS
3.8RS was a one off limited run. Doesn't count. Okay so I may be wrong with some multi engine cars but none of those have diesel versions. All full on throaty petrol versions.