Maintenance / Quality V70 2.4 Bi-fuel

Hello, looking for a high-quality car (so far not very satisfied with Opel and Mazda) I have come across Volvo through the BMW Forum. Background is that I would like to have a LPG car that is affordable in maintenance (maintenance/inspection and repairs) and shines with a good workmanship. So far, for opt. reasons, I have not been able to really get along with a Volvo (especially the V70). But the advantage of Bi-Fuel technology is for me a What are your experiences / opinions about the 2.4 (103 KW) Bi-fuel vehicle?? What about the consumption??? Currently, a dealer nearby has a V70 2.4 Momentum as a Bi-fuel with 103KW and 18.300 KM for 24.900 on offer. Is this a good offer? The capacity for the PS number is quite large. Is this rather positive or negative? For tips and aids I am grateful!!