In general, a machine with a power consumption of 50W is considered to be equivalent to 100W, which is a very conservative estimate. In normal use, 25W is sufficient, so the cigarette lighter's power output should be adequate. The only issue would be whether the wiring looks aesthetically pleasing. If it doesn't look good, you can connect it from within the hidden cable bundle. When connecting the wires, make sure not to mess them up.
If you install a panel, this also involves routing the wires from the panel to the body of the car. However, these wires can be routed and fit under any interior trim panel. Therefore, I believe the best solution is to purchase a VGC 7600 or 7500 model without a panel and use it directly with your phone or car's infotainment system. I have already purchased four VGC products, and this really is convenient. If you insist on having a good user experience, you can buy an N7500 and pair it with their wireless remote control. This remote will also fill in the missing features of the 7500. Then, simply place the machine in the trunk or elsewhere, and use a suction cup or clamp to attach the antenna. This will shorten the wiring and reduce losses. I have the 7500 under my seat, with the wiring running to the back door and then up to the roof of the car. I control it using my phone or remote.