LiFe batteries should work good in that temperature range. They can last as long as 5000 cycles if you don't discharge them too deeply.
Do you really need 200-300 hp? Most people go with about 50 hp peak... 200 hp is only needed if you are dragracing etc!
But 300 hp = 224 kW, and lets say you use thundersky batteries, that can pulse 5 C current, then you will need 44,8 kWh total energy storage in your batteries (independent of your battery configuration, but higher voltage is to prefer to minimize losses). That is a huge amount of energy, and it will cost. There are batteries than can discharge far more pulse current though!
Your range will depend on car and how you drive, but I would guess about 300 Wh/km to be sure! The 44,8 kWh battery would thus take you at least 150 km, but probably further.
Do you really need 200-300 hp? Most people go with about 50 hp peak... 200 hp is only needed if you are dragracing etc!
But 300 hp = 224 kW, and lets say you use thundersky batteries, that can pulse 5 C current, then you will need 44,8 kWh total energy storage in your batteries (independent of your battery configuration, but higher voltage is to prefer to minimize losses). That is a huge amount of energy, and it will cost. There are batteries than can discharge far more pulse current though!
Your range will depend on car and how you drive, but I would guess about 300 Wh/km to be sure! The 44,8 kWh battery would thus take you at least 150 km, but probably further.