Hi Sunny,
Re the fuel gauges - On the 'L' and prior models, the fuel gauges are in the cluster of 6, top right hand panel, two outside gauges, upper row.
Easily visible to all.
Not sure about the 'M', but on the 'N', they are located down on the centre pedestal just above the 'Fuel Tank Select' lever, (near the floor) so may not be readily apparent to passengers not familiar with the layout.
Cheers