Electric vehicles can already save you tons of money at the gas pump, but advancements in battery technology are also helping to bring down what it costs to produce the cars in the first place.

Since electric vehicles often rely on electricity from the grid, some drivers worry whether they’re unreliable in a storm or disaster situation, where evacuation traffic could be long and laborious.

The electric model was Mystery Car A — it’s the Lucid Air Pure, which starts at just under $70,000 and gets an estimated 420 miles per charge. Meanwhile, the second car was the Cadillac CT4-V Blackwing trim, which starts at just over $63,000 and has 472 horsepower.

Despite the recent increases in EV sales, it’s clear that many people still think of gas vehicles when it comes to trucks and off-road vehicles. But some car companies — both new and established — are seeking to change that.

Hybrids and EVs both offer major benefits, but the difference depends on your location, your life situation, and an array of other factors.

EVs have been growing in mainstream popularity, but EV batteries still have a ways to go before being a perfect replacement for gas engines. Luckily, batteries are slowly evolving to tackle some of these underlying problems.