Yes, achieving 0-60 mph (0-97 km/h) in 4.5 seconds is considered fast acceleration for a vehicle. However, the perception of "fast" can vary depending on the context and comparison to other vehicles.
In terms of common sport cars, a 0-60 mph time of 4.5 seconds is respectable but may not be considered exceptionally fast in the high-performance segment. Many modern sports cars can achieve quicker acceleration times, with some reaching 0-60 mph in under 4 seconds or even closer to 3 seconds. Examples of such cars include the Porsche 911 Turbo S, Chevrolet Corvette Z06, or Tesla Model S Performance.
When comparing to motorcycles, it's important to note that motorcycles generally have quicker acceleration due to their lighter weight and high power-to-weight ratios. There are several high-performance motorcycles that can achieve 0-60 mph times well under 4.5 seconds, often in the sub-3-second range. Superbikes like the Ducati Panigale V4, Yamaha YZF-R1, or Kawasaki Ninja ZX-10R are known for their blistering acceleration.
Ultimately, while a 0-60 mph time of 4.5 seconds is indeed fast, it may not be considered extraordinary when compared to the fastest sports cars or high-performance motorcycles available today. However, it's important to remember that performance specifications can vary greatly depending on the specific model and modifications.