Your torque will run out very quickly at high rpm, you can take the lead, over time you suddenly see some rempit coming from behind.
Why don't you go and test?

There are reasons why people take 2, 3, or 4 cylinders.
1 cylinder isn't gonna cut it if they're trying to sell based on its looks.

Banyaknya yang mempersoal tapau-menapau sesama motor. Jadi aku akan explain dari segi engineering (ambik elektif dulu automotif engineering):
1) Torque determines the acceleration.
2) Horsepower determines the top speed.

Dua-dua mempunyai hubungan:


Ini basic untuk torque dan horsepower. Lepas tu:
1) The lighter the vehicle, the faster it accelerates. The heavier the vehicle, the slower it accelerates if both of the vehicle have the same torque.
2) Vehicle with higher air drag will have lower top speed, vice versa for both vehicle with the same horsepower.


FD is the drag force, which is by definition the force component in the direction of the flow velocity,[1]
rho is the mass density of the fluid, [2]
v is the velocity of the object relative to the fluid,
A is the reference area, and
CD is the drag coefficient – a dimensionless coefficient related to the object's geometry and taking into account both skin friction and form drag.
http://en.wikipedia.org/wiki/Drag_equation

Untuk hubungkan drag force sama horsepower (untuk overcome the drag force at high speed):
P = F.V
P: Power
F = Drag force
V = vehicle speed

Dari formula drag force boleh lihat drag force increases exponentionally dengan peningkatan vehicle speed, sebagai contoh:
Katakan drag force untuk 50 km/h = A
drag force untuk 100 km/h = 4A
drag force untuk 150 km/h = 9A
drag force untuk 200 km/h = 16A

Macam mana dapat 16A untuk 200 km/h? Bahagikan 200 kuasa dua sdengan 50 kuasa dua = 40000/2500 = 16

Sebagai contoh horsepower kereta dengan top speed yang boleh didapati:
100 km/h = 20hp
190 km/h = 110hp (god car, waja, honda siti nurhaliza)
260km/h = 280hp (subaru imprekzaaa, lancer evo ori, lancer evo tiruan wiralution)
410km/h = 1000hp (veyron)

Boleh nampak semakin tinggi top speed, gila vavi horsepower diperlukan.
Jadi kapcai dengan 9hp mahu tapau KTM 390 dengan 44hp, jangan harap lah! lol 
kapcai yang sudah gila babi modify pon boleh cecah 160km/h jek.
Satu-satunya kapcai yang boleh lawan ialah kapcai 125z cub prix, ini gila vavi laju.