Utility
The Lincoln will quite certainly prove handier than the Cadillac STS for those of you with frequent child-cargo.
The Lincoln Town Car outpulls the Cadillac STS by a massive margin.
Performance
As far as horsepower, the Cadillac STS packs quite a wallop and will knock the Lincoln Town Car down a few rungs. However, note that high horsepower engines often command higher insurance premiums.
With that kind of horsepower, the Cadillac STS is a legitimate speedster.
Dimensions
The Lincoln Town Car is considerably heavier than the Cadillac STS.
The Cadillac STS's tank is almost the same size as the Lincoln Town Car's, though the Lincoln Town Car's is a tad larger.
The Cadillac STS and the Lincoln Town Car compete for the same parking spaces.
Convenience
You'll most certainly take the Town Car for a fill-up approximately as often as the Cadillac STS.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The STS is significantly cheaper to get to the dealership than the Lincoln.
Producing a precise fuel economy evaluation is so hard that some think not even the federal government can do it, but it looks as though both the Cadillac STS and the Cadillac STS perform approximately similarly as far as fuel economy.
When it comes to fuel economy, the Cadillac is slightly better than the Town Car, but not by much.
When it comes to MSRP, the Cadillac costs about as much as the Lincoln Town Car (though the Lincoln Town Car is slightly cheaper).
Handling
With its tighter turning radius, the Cadillac STS is definitely more agile than the Lincoln Town Car, something to consider if you do a lot of city driving; on the other hand, remember that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The Lincoln Town Car's engine is substantially bigger than the Cadillac's. Note that more massive engines may use more gas than smaller ones.
Torque is the force that lets you accelerate quickly, and in this respect, the Lincoln Town Car isn't much more powerful than the Cadillac STS.
Comfort
While the front cabin in the Lincoln Town Car offers a bit more head room than the STS, there really isn't much of a difference.
The Lincoln Town Car is not particularly roomier for your passengers than the Cadillac STS.
Warranty
The Cadillac STS and the Town Car have the same basic warranty.