The horsepower is a feature that most of car fans take into account at first when buying a car. In this case it is the Mercury Cougar II that has by 90 more horsepower in comparison to the BMW Z4 E85 Cabrio 2.0 i 16V 150HP manual. Therefore the Mercury Cougar II 5.8 240HP can achieve higher maximum speed. Because of more horsepower the Mercury Cougar II should also give more flexiblility in specific gears.
Width of a vehicle directly affects room in the cabin as well as stability while driving. The width of the Mercury Cougar II 5.8 240HP is larger only by 8 % than the BMW Z4 E85 Cabrio and is not really important. The average for the „sports cars” segment is 1,791 millimeters and is by 7 percent larger than the same feature of the Mercury.
The wheelbase of a vehicle is the distance separating its front and rear wheels. The wheelbase significantly affects the driving due to better vehicle's weight distribution. Mercury has 14 % longer wheelbase distance in relation to BMW Z4 E85 Cabrio. Wheelbase dimensions are crucial to the balance and steering. Thus, the mass of Mercury should be better distributed and driving should be easier and safer.
The Mercury is 991 mm longer in comparison to the BMW Z4 E85. The length of the car is important in respect of travelling comfort and space in the boot. The Mercury Cougar II preasumbly will be offering to it's passangers more space for legs. Aditionally the Mercury Cougar II will be better driven ,however, the BMW Z4 E85 Cabrio 2.0 i 16V 150HP manual will be a slightly easier for parking due to shorter length .
If you are a tall man or you carry in the trunk stuffs of big dimensions, the Mercury Cougar II, which is by 1 % higher than the BMW Z4 E85 Cabrio, would be better choice for you. However, compared cars do not differ much when it comes to its height and it should not be much observable.