Buick's current crossover lineup prioritizes comfort over speed, but the brand's performance legacy runs deep. The turbocharged Grand National and legendary GNX terrorized muscle cars in the 1980s, with the GNX running 13-second quarter miles from the factory. Today's Encore GX, Envision, and Enclave focus on refined daily driving with available turbo power, proving that sleeper performance has always been part of Buick's DNA.