The first Priuses were as reliable as a Schwinn bicycle. And almost as fast.
The trick is, you can't break anything without force. And the Prius has never been about torque. To put things in perspective, when driven assertively, the 2004 Prius will take nearly 3 times as long to reach 60mph as a Model 3LR and twice as long as a Bolt even though the Prius was a mear 2900lb when full of fuel.
People raved about the 40hp VW Beetle. For it's day, it was virtually indestructible if you kept up with the maintenance.
If Tesla put a weak motor in the Model 3 it would probably last forever. But who wants to live forever?