Cadillac unveiled the 2014 ELR at the 2013 NAIAS in Detroit. The production coupe, which is a faithful reproduction of the Converj Concept from 2009, features the first application of Extended Range Electric Vehicle (EREV) tech by a full-line luxury brand, GM says. EREV is the same tech used in the Chevy Volt.
EREV combines pure electric drive and a range-extending 1.4L petrol-powered electric generator capable of 207 hp of total system power, with 400 Nm on tap. Full driving range exceeds 300 miles, or 480 km.
The ELR’s battery is a T-shaped, 16.5 kWh lithium-ion pack, located along the centerline of the vehicle, between the front and rear wheels for optimal weight distribution. Using only the energy stored in the battery, the Cadillac ELR will deliver a GM-estimated range of about 56 km of pure electric driving, depending on terrain, driving techniques and temperature.
A driver-selectable Hold mode directs when the Cadillac ELR uses its electric generator. This feature helps optimise the electric-driving experience, allowing owners who mix city and highway driving to save the battery charge for city travel, where the ELR EV mode operates most efficiently.
Charging the Cadillac ELR’s battery can be done with a 120V electrical outlet or a dedicated 240V charging station. The vehicle can be completely recharged in about 4.5 hours using a 240V outlet, depending on the outside temperature.
Once the vehicle is plugged in, owners can schedule either immediate or delayed charges, even coordinating charging according to departure time or when electricity rates are lower. Owners also can manage and monitor the ELR online or with their smartphone and RemoteLink, a mobile app powered by OnStar.
Cadillac ELR production begins in the USA in late 2013, with sales starting in early 2014 in North America and expanding to global markets including China and Europe.