please help me to help my lovely mum

Hi everyone. I'm 25 and I currently live at home with my mum who unfortunately suffers from multiple sclerosis. She has had the disease for over 20 years and has now got to a stage where she is no longer able to walk and is confined to an electric wheelchair, life has started to become quite difficult for her. I don't currently have a car which makes it difficult for me to be able to take my mum out. I'd love to be able to afford a specially modified car to allow my mum access in her chair so I can help her become a bit more mobile. Any donations big or small will be hugely appreciated to help me achieve this. :)