Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs approximately the same to get the BMW to the dealership as the Lexus GS 450h.
The BMW M5 guzzles a lot of gas compared to the Lexus GS 450h.
The Lexus GS 450h is tremendously less costly than the M5 regarding MSRP.
The Lexus GS 450h will save you a lots_of_money at the pump every year compared to the BMW M5.
Utility
The M5 and the GS 450h can accommodate the same number of passengers.
Convenience
You'll most definitely have to take the BMW M5 for a fill-up more often than the Lexus GS 450h because of its tank size and gas mileage.
Comfort
Taller drivers will considerably enjoy the extra head room in the BMW M5's front cabin compared to the Lexus GS 450h.
The BMW is not particularly roomier for your passengers than the Lexus GS 450h.
Dimensions
The GS 450h's tank is almost the same size as the BMW M5's, though the BMW M5's is a bit bigger.
The Lexus GS 450h and the BMW M5 compete for the same parking spaces.
Performance
In terms of horsepower, the BMW M5 packs quite a punch and will knock the Lexus GS 450h down a few rungs. On the flip side, bear in mind that high horsepower engines often command higher insurance premiums.
Handling
With its tighter turning radius, the Lexus is quite certainly more agile than the BMW M5, something to consider if you do a lot of city driving; on the flip side, remember that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
Drivetrain
The BMW's engine is considerably more massive than the Lexus's. Note that larger engines may use more gas than smaller ones.
Torque equals pickup, and the BMW M5 will have picked up and gone by the time the Lexus finally gets moving.
Warranty
The Lexus GS 450h and the BMW M5 have the same basic after-sale protection.