The C25 camping-car rarely has the small 1.8L petrol. You will almost exclusively find diesel engines for torque and economy.
The C25 was produced before the widespread adoption of common-rail diesel. Most camping car versions are diesel due to torque and fuel economy. citroen c25 camping car fiche technique
🐢 You will not keep up with modern traffic on steep mountain passes. Plan your routes accordingly. The C25 camping-car rarely has the small 1