Cadillac STS vs. Infiniti M45 Review

Handling
With their comparable turning radii, the M45 and the Cadillac STS most certainly handle approximately the same into and out of tight spots.

Drivetrain
The STS's engine is significantly smaller than the Infiniti M45's. Bear in mind that smaller engines can be stressed more; on the flip side, smaller engines typically get better gas mileage. Torque equals pickup, and the Infiniti M45 will have picked up and gone by the time the Cadillac STS finally gets moving.

Utility
The Infiniti and the Cadillac STS can accommodate the same number of passengers.

Convenience
The Infiniti's fuel tank will need to be replenished slightly more often than the unit in the Cadillac.

Comfort
While the front cabin in the Infiniti M45 offers a bit more head room than the Cadillac STS, there frankly isn't much of a difference. The Cadillac STS is not particularly roomier for your passengers than the Infiniti M45.

Dimensions
Your wallet will hurt more every time you fill up the M45 than the Cadillac STS because of its bigger tank. The Infiniti M45 and the Cadillac STS compete for the same parking spaces.

Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs roughly the same to get the Infiniti M45 to the dealership as the Cadillac STS. There honestly isn't much of a difference in gas mileage here, but if you must know, the STS is somewhat more economical than the M45. As far as fuel economy, the STS has the Infiniti M45 beat. The Cadillac STS isn't much costlier than the Infiniti M45 as far as MSRP.

Warranty
The basic warranty that comes with the Cadillac STS isn't quite as generous as the Infiniti M45's.