> EVs need significant volume for batteries. The only places available in a combustion vehicle are the engine bay and the gas tank. If you put batteries in the

> EVs need significant volume for batteries. The only places available in a combustion vehicle are the engine bay and the gas tank. If you put batteries in the engine bay, you'll mess up the weight distribution. The volume occupied by the gas tank isn't nearly large enough to house a battery for decent range. You're forgetting: exhaust and transmission tunnel (for RWD/AWD cars). Just those two areas alone are a substantial amount of space. Add in space in the sub-trunk area (that might have a spare tire, or just free space)... and you can cobble together quite a bit of capacity. > EV motors have lots of torque. If you use the original transmission, you'll need to limit torque based on which gear it's in. Any replacement transmission will need to be designed for that car chassis. It's not easily adapted to other models. Why would you use the existing transmission? Just use the transmission built into the EV motor... they all have them.