Cat
Cat reliability, whilst genuine, operates according to principles entirely divorced from human convenience. The cat will function—it will breathe, move, and process nutrients—with exceptional consistency. A well-maintained cat may operate for 15 to 20 years without major systems failure. However, the cat's willingness to perform on command approaches zero. One cannot schedule cat affection; one receives it according to the cat's inscrutable internal scheduling system. The cat is reliably present, but reliably available for interaction only when it suits feline purposes.
Tesla
Tesla reliability data presents a complex picture. Consumer Reports surveys have historically ranked Tesla vehicles below average for reliability, citing issues with panel gaps, electronic malfunctions, and build quality inconsistency. Software updates occasionally introduce new features whilst simultaneously disabling previously functional systems. That said, the fundamental drivetrain—battery and electric motor—demonstrates excellent longevity, with many vehicles exceeding 200,000 miles without major powertrain intervention. The Tesla is reliably a vehicle; whether it reliably does precisely what its operator intends is another matter entirely.