Performance
In terms of horsepower, the Porsche Boxster packs quite a punch and will knock the Eos down a few rungs. On the flip side, keep in mind that high horsepower engines often command higher insurance premiums.
With its very low horsepower-to-weight ratio, the Porsche Boxster will knock you back into your seat when you accelerate.
Handling
The Porsche Boxster's rear-wheel drive layout likely gives it better weight distribution than the Volkswagen; however, the Volkswagen's front-wheel drive layout likely provides better traction in rain, snow or ice.
The Boxster has significantly bigger tires than the Volkswagen Eos. Remember that wider tires could improve handling, while narrower tires can improve gas mileage.
With their similar turning radiuses, the Volkswagen Eos and the Boxster likely handle about the same into and out of tight spots.
Drivetrain
The Volkswagen Eos's engine is tremendously smaller than the Porsche Boxster's. Remember that a smaller engine usually has to work a little harder; on the other hand, smaller engines typically get better gas mileage.
Torque is roughly equivalent to acceleration, and in this respect, the Porsche Boxster is substantially more powerful than the Volkswagen Eos.
Utility
There's no clear winner between the Volkswagen Eos and the Porsche Boxster with respect to transporting cargo.
The Volkswagen will indubitably prove friendlier than the Boxster for those of you with frequent child-cargo.
Convenience
The Porsche Boxster's fuel tank will need to be replenished slightly more often than the unit in the Eos.
Dimensions
The Volkswagen Eos is considerably more ponderous than the Porsche Boxster.
Your wallet will hurt more every time you fill up the Porsche than the Volkswagen Eos because of its more capacious tank.
The Porsche Boxster and the Volkswagen Eos compete for the same parking spaces.
The Volkswagen Eos's longer wheelbase will likely result in a smoother, more stable ride; however, the Porsche Boxster may give a nimbler feel in daily traffic.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The Volkswagen Eos is quite a bit cheaper to get to the dealership than the Porsche Boxster.
The Volkswagen Eos will save you money at the pump compared to the Porsche Boxster.
With respect to MSRP, the Volkswagen Eos costs tremendously less than the Boxster.
Overview
The Volkswagen and the Boxster have the same basic warranty.