People are reluctant to get LPG installed in their cars, just bcaz LPG was initially being used by the Taxi Drivers, who got installed LPG kits from untrained local mechanics. Which had many leakages resulting in feel of bad smell while driving. I have personally seen very elite cars in Thailand which were being used on LPG, even I drove one, believe me its performance was as good as you are using petrol.
Presently a byco's refinery is in under installation which is expected to commence its operations this year. They have already awarded LPG contracts to various parties. The LPG is of course a cheaper fuel as compare to petrol, provided its kit is installed by people having expertize of same. Our people's mentality changes with the passage of time.