Battery Tesla or OEM Mazda

For an all-arounder, the Tesla Highland refresh LR RWD is likely the answer. OOSR tested it and got 4.9 miles per kWh (204 Wh/mile) on their 70 mph highway cruising test, besting a Lucid Air Grand Touring by almost 15%.

2014 Mazda 3 with 322,000 kms, it's doing fine. I'm still on original engine, transmission and starter. I use it almost daily in traffic. The only problem is that the battery is slightly more costly than a standard one, which offsets the miniscule fuel savings you're getting from the system

I have this car. Most important is that below -12C, the gas engine stays on, and won't let you drive around on electric alone. That accounts for several months of driving in our winters. Secondly, even in temps below +10C, you have less access to the battery's energy, so your range drops even independently from the usual cold temp range losses.

At 4 years both our Teslas appear to have essentially the same range as new. Which is to say a bit lower than Tesla advertised but no worse

I'm going to turn 230k miles on my 2018 model 3 tomorrow. The only time it has been to a service center is when the 12v battery died on a road trip. Other than that, I've put tires on it. I'm at about 21% degradation but everything still runs as it should. I'm hoping to get to 300k miles on the original battery.

Owned a model Y for 2 years and 65k miles (9% battery degradation for those wondering). It got extremely boring and I was tired of the constant nagging from the car.

Warranty: side repeater, spoiler, battery (at 82k)

These are excellent cars but for some reason the batteries they use are bad. I had a 21 Mazda 3. The battery failed in 2023. They replaced it under warranty. The new battery lasted literally less than 6 months.

Mazda OEM batteries are trash. Always have been. 35 years with Mazda and we stocked a ton of them.

I do worry about the battery and 3 years in my big battery died and thankfully I was in my garage. I shudder to think if it had happened on a freeway! Tesla gave me a new battery but I still think about it often.