My wife wants me to buy a Nissan Leaf. I told her no as weight plays a huge factor in Electric cars.?

With average sized people, it gets maybe 100 miles to a charge. I weigh 175 lbs and she weighs about 456 this week.
Based on the dlrship i spoke to, our combined weight would give us a 50 miles to a charge.
Would any of you think this is worth it?
Update: anorexic??? Nope. I'm 5'9" so 175 at my age is about right..
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