I have the Brother HL-L6200DWT in my home and an Epson M404N in my car. I want to get another HL-L6200DWT for my car. It’s much faster, but I’ll work with what I have for now. I purchased a Deep Cell battery (marine battery) for my car. It’s attached to a 2000 watt inverter which powers a printer, Epson ES-400 scanner, and my HP laptop when I have to plug it in. I didn’t want to run anything off my car battery. As far as Wifi, I have a hotspot on my phone but I’m not computer savvy, I don’t always get the connection right. So, I park in McDonald’s parking lot and use their Wifi. There’s a video on YouTube on how to run a printer from your car. The marine battery cost about $100. The 2000 watt Ampeak inverter cost about $150. The video explains very clearly how to connect everything. All this sits in the rear of my Dodge Journey. I also have paper, elastic bands, folders for client copies with my business cards inside a clear card holder, attached to the folder.