The materials cost is only a small part of the total cost for the whole design, manufacture, logistics cycle of the tyres journey to your bike or car. Everything else will be cost similar between a bike tyre and car tyre which explains the cost.
Someone round here falls for the marketing bullshit.
I bought my son 2X £57* tyres for his Seat for Xmas (yes, I’m a nice daddy), then he had to replace a bike tyre at BPW and paid £85 including sealant :lol:
The car ones will last, what? 2 years, 3 years? The bike one…? It’s nothing to do with design, it’s ‘lifestyle’ prices.
*Black Circles seems to be the way to go these days for reasonable cost