I'm a petrol head.
That's why I drive a V8 turbo Rangie instead of a diesel one.
Diesel is good for the wallet, but bad for the soul.
If someone said "You can have one gallon of fuel, either petrol or diesel, and any vehicle in the world to burn it in, but it's your last gallon ever" would you choose a diesel?
I wouldn't. I'm afraid to say I'd be choosing petrol and something with an extremely high fun quotient. Lamborghini Murcielago, Range Rover Supercharged, Bowler Wildcat, Porsche 911 turbo, ariel atom, etc.
I'd not be thinking "oh, well, I'll get 15 miles for the petrol, or 25 for the diesel".
So, to answer your question, I'm driving to Czech to see friends, but the trip is for my enjoyment. I drive diesels when I'm working, but I'm going to take the Rangie because I love it. If I wanted to save money, I'd fly to Prague and get the bus to Liberec, or hire a diesel Corsa, but that, to me isn't enjoying a driving holiday, it's ruining one.