Does the ST170 have its power or not?

Moin I’m really thinking about buying an “old” ST. Well, my wife likes the suspension from the Focus very well and especially, in contrast to our Cougar, the park friendliness. Well, it’s only 161cm big! What only bothers me are here some things that you read like the box does not have the power. If I just buy such a car I also wanted to upgrade it to LPG and if someone has experience with it : Please post it! Greeting Berni