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Mazda CX-5 looks to be smaller than Model Y, so more fair comparison would be to CX-60 which seems to be similar size, where the difference between these two is under 20 kg according to carsized. See:

https://www.carsized.com/en/cars/compare/mazda-cx-5-2012-suv... https://www.carsized.com/en/cars/compare/tesla-model-y-2021-...

About same size, Model Y is 33% heavier

https://www.carsized.com/en/cars/compare/tesla-model-y-2021-...

Tesla Y: Max curb weight 2003 kg Mazda CX-5: Max curb weight 1765 kg (according to Wikipedia)

For that specific example: a model y weighs ~4450 lbs and a cx5 weighs ~3800, leaving a delta of ~3-4 grown adults in terms of weight.