Here’s a 2025 Buick Enclave Avenir. The Buick Enclave is an SUV that’s been in production since 2007. This is from the third generation, which has been in production since 2024 (the first model year was 2025). The engine is a 2.5 liter turbocharged LK0 straight-4 that produces 328 horsepower and 326 pound-feet of torque. The transmission is an 8-speed automatic.