TOYOTA EXPECTS hybrid versions of the fifth-generation RAV4 compact crossover to represent up to 25% of sales compared with non-hybrid RAV4s. That’s more than double the hybrid’s usual take rate. But, at the risk of being impertinent, Toyoda-San: Why isn’t that figure 100%?

The gas-electric version of Toyota’s small crossover is quicker and more responsive, more powerful and more capable and smarter about packaging (the new battery pack doesn’t intrude on rear cargo space). Even with all-wheel drive as standard equipment,...