Bob Gritzinger
Industry Analyst -- Propulsion and Technology

Bob covers Propulsion & Technology: Engines, transmissions and drivetrains and related electrified systems such as electric vehicles, hybrids and fuel-cell vehicles.
Latest From Bob Gritzinger
Stellantis Whips Up a Powerful New ICE Storm
The smooth power of an inline 6-cyl. comes to Stellantis in the form of an all-new 3.0L twin-turbo powerplant designed to carry the automaker from internal combustion to electrification in the coming decade.
AutoTech Check: ’22 Toyota Tundra i-FORCE MAX
Toyota applies its hybrid expertise to the Tundra, bringing a powerful new propulsion system to the fullsize truck market.
AutoTech Check: ’21 Ford Bronco and ’22 Maverick
Ford’s Maverick compact pickup and Bronco off-roader show off the automaker’s engineering capabilities across two widely different light-vehicle segments.
Mercedes-Benz BEV Concept Measures the Miles (Per kWh)
In a world full of BEVs offering 3-4 miles per kWh, the Mercedes-Benz Vision EQXX registers a stunning 6.2 miles per kWh, giving the vehicle more than 600 miles of range from a sub-100-kWh battery.
Q&A: Exro CEO Sue Ozdemir Discusses Unique Motor-Control Technology
Improving the efficiency of electric motors is the core technology under development by Exro Technologies. The company’s Coil Driver employs a patented system of motor management that can eliminate the need for multiple motors to power everything from electric bicycles to medium-duty trucks.
Automakers Banking on Advanced Combustion Concepts for ICE Efficiency
As the automotive industry hurtles toward an electrified future, the internal-combustion engine remains a significant part of the mix. Our industry survey indicates a handful of technologies are expected to improve ICE efficiency in the coming decade, with advanced combustion concepts leading the way.