I normally have had engine block heaters in my cars, but in this I don't. I get bored easily with my cars and swap them about once a year and haven't gotten around to have a heater installed...
Electric pads attached to engine block are not that efficient compared to Webasto diesel heaters, but several hours of heating with electric heater can heat the coolant somewhat. The weird thing about OEM Webasto is, that it doesn't heat the engine, only the cabin.
F10 530d X-drive M-Sport & e90 325xiA & R1200RT
e65 730dA LCI Individual
e61 530dA LCI Edition Sport
e60 530xdA LCI
e39 530dA Touring M-Sport
e39 530dA Touring
e39 523iA Touring