In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Celestiq are reminded to check the back seat if they opened the rear door before starting out. The Taycan doesn’t offer a back seat reminder.
To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the Celestiq. But it costs extra on the Taycan.
The Cadillac Celestiq’s rear backup camera has a standard washer for maintaining a clear view under various conditions. In contrast, the Porsche Taycan does not offer a rear camera washer, meaning its effectiveness relies on manual cleaning by the user when necessary.
Both the Celestiq and the Taycan have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available night vision systems.
The Cadillac Celestiq weighs 808 to 1370 pounds more than the Porsche Taycan. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

