Chris, Carl,
To go from 230 to 320 WH/mile by putting the heat on would indicate that the heating system is drawing more than 5KW of power to the heating system. That doesn't seem right.
Is this the immediate change in power consumption or does it continue even after the car has warmed up to steady state. I wonder if it is a temporary power draw as the car heats up and if it tapers off once the set temperature is reached.
My average Wh/Mi is ~270, a friend who used my car was able to do 200. Same car, similar temperature conditions. Both the trips were mixed use. That's quite a difference for the same car.
@Carl Thompson,
The energy consumption is all over the place for a reason - the M3 seems to be very sensitive to driving style.
I just got mine and my average is 240 for 200 miles driven so far with me punching a few times and my last 50 miles where I floored it once was 217. I'm thinking if I drove normally I should see 210 average. This car is super fun with autonomous driving.
Wh/Mile: 284
Driving type: Mixed
Temperature: 45F to 65F
Mid-range 3, 19" wheels. 50 mile-round-trip to work.
Climate control auto set to 70F.
2200 miles so far.
Heated seat usage 80% of the time.
Enhanced Auto-pilot driving 90% of the time.
Speed is at 70MPH for auto-pilot although goes up to 75MPH if I am being "pushed" from behind by an SUV.
I have a 2016 70d all wheel drive. Was averaging 304 watts per mile Had sudden increase to 340w/mile No change in temperature, driving pattern, tire inflation etc. Most driving on California freeways
Comments
To go from 230 to 320 WH/mile by putting the heat on would indicate that the heating system is drawing more than 5KW of power to the heating system. That doesn't seem right.
Is this the immediate change in power consumption or does it continue even after the car has warmed up to steady state. I wonder if it is a temporary power draw as the car heats up and if it tapers off once the set temperature is reached.
Around town and freeway 18 inch moon rims = 241 wh / mile
Around town and freeway 20 inch stag rear 265/20 front 235/20 = 268 wh / mile
Model S heat draws 6kW max, so 5 is not unrealistic.
Optimal driving conditions, ~zero wind, zero net elevation.
@Carl Thompson,
The energy consumption is all over the place for a reason - the M3 seems to be very sensitive to driving style.
Driving type: Mixed
Temperature: 45F to 65F
Mid-range 3, 19" wheels. 50 mile-round-trip to work.
Climate control auto set to 70F.
2200 miles so far.
Heated seat usage 80% of the time.
Enhanced Auto-pilot driving 90% of the time.
Speed is at 70MPH for auto-pilot although goes up to 75MPH if I am being "pushed" from behind by an SUV.
Temperature 40F-55F Seattle area
Mixed
Austin (so temps typically 50 - 90)
Miles added: 5k
Ownership: ~7 months
Style: Chill mode but not afraid to step on it
I would say the efficiency started to really improve after a 1k-2k miles.