I had rarely heard this phrase a decade back, leave alone seeing it on a vehicle. You see this slogan now, you can be rest assured that the driver belongs to the Madhwa community.
Like I already told many times, wearing your religion on your sleeve is becoming a trend nowadays.
ಹರಿ ಸರ್ವೋತ್ತಮ
ವಾಯು ಜೀವೋತ್ತಮ
The slogan on the car has plenty of Sanskrit grammatical mistakes though - liberal usage of visarga (ending with 'aha') when totally unnecessary. It should not be 'harihi', it should just be 'hari'. Even the 'learned' priests of today make the mistake of usage 'am' and 'aha' at inappropriate places, to make you feel like it is indeed Sanskrit!
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