2005 Mini Cooper
 

I have a 2005 Mini Cooper that I’m looking to possibly sell. It has 125,000 miles on it and I’ve recently started to have some electrical issues. I thought it was the battery, so that was replaced but still electric issues. Gas gauge doesn’t work. Whole tachometer (and associates warning lights) don’t work. Speedometer does work usually but makes a weird “whirring” noise when I start the car. The battery has died again, not sure the cause or cost to fix it. Any thoughts?? Would somebody still be interested in purchasing the car anyway?? Is it worth fixing first?? Any thoughts or insights are appreciated. Thank you.