THE DIFFERENCE BETWEEN FRONT ENGINE VEHICLE VS REAR ENGINE VEHICLE AND FRAMED STRUCTURE VS FRAMELESS STRUCTURE

Front Engine Vehicle

Rear engine Vehicle

Travelling is faster and safer as compare
to rear mount engine.

Travelling is less fast
and safer than front mount engine.

This engine vehicles have
good road adhesion due to large vehicle weight carrying on driving wheel.

This engine vehicles
having less road adhesion as compared to front mount engine.

This engine provides less
passenger comfort compared to rear mount engine. 

This engine provides
better passenger comfort due to reduce noise, heat and fumes.

It provides high floor
results in more passenger space as compared to rear engine.

It provides less floor
area result in more passenger space due to dispensing with propeller shaft.

Front engine vehicles
provide natural air cooling.

Rear engine required
powerful Radiator with fan.

In this engine as compared
to the rear engine the vehicles are less affected.

In this engine, the
rearward concentration of weight causes the vehicle more affected by side.

Chance of wheel skidding
is less.

Chance of wheel skidding
is more.

Front engine vehicles
visibility is poor. Problem of Understeer while taking sharp turn.

Rear engine vehicles
visibility is good. Problem of Oversteer while taking sharp turn.

Framed Structure

Frameless Structure

It is used for commercial heavy vehicles.

It is used for light vehicle and mostly for
cars.

In this type of frame construction, the
frame and body are a separate part. The chassis components and body are
fitted on the frame.

In this type of frame construction, the
frame and body are integrated part and on it the different chassis components
are fitted.

The heavy and long side members and are
used. Cross members are also used.

In this type Floor is strengthened but the
side members and cross members are eliminated.

This construction is better for low volume
produced a vehicle.

This construction is very much suitable for
light and mass-produced vehicles.

There is flexibility to fitting a variety
of bodies to the same chassis.

It is designed for a specific vehicle and
there is no flexibility to change the body design for the corresponding
chassis.

The localized accident damage is easy to
repair in comparison to the integral chassis.

In case of accident, it becomes difficult
to repair, set it right and properly align the same.

The height of the chassis is increased or
decreased depending upon the techniques of mounting the chassis frame to the
axle.

The height of the chassis does not change
once it is designed.

The dead weight of a vehicle is greater as
the frame required long and heavy side and cross members.

The dead weight of the vehicle is less as
body floor works as a chassis and extra cross members are eliminated.

Due to the heavy frame, the C.G. of vehicle
higher compared to the frameless body. Hence vehicle at high speed the
stability is reduced.

Due to the elimination of frame C.G. of a
vehicle is lowered which gives more ty stability specially for a fast-moving
vehicle.

Manufacturing cost is less

Manufacturing cost is high

More Fuel Consumption

Less Fuel Consumption

The cost of a vehicle is increased due to a
heavy frame.

Cost is less as body floor works as long
side and cross members.