The ACRISS Car Classification Code is a code used by many car rental companies, including Avis, Hertz, Alamo, Europa car and National, for classifying vehicles. ACRISS stands for Association of Car Rental Industry Systems and Standards. The code has four letters, each of which represents an attribute of the vehicle. First letter: Class
M = Mini
E = Economy
C = Compact
I = Intermediate
S = Standard
F = Full Size
P = Premium
L = Luxury
X = Special
Second letter: Type
B = 2 Doors
C = 2/4 Doors
D = 4 Doors
W = Wagon
V = Van (6+ passengers)
L = Limousine
S = Sport
T = Convertible
F = 4-Wheel Drive
P = Pick Up
J = All Terrain
K = Van (cargo)
X = Special
Third letter: Transmission
A = Automatic
M = Manual
Fourth letter: Air Conditioning
R = Yes
N = No wiki Car Classification Code The ACRISS Car Classification Code is a code used by many car rental companies, including Avis, Hertz, Alamo, Europcar and National, for classifying vehicles. ACRISS stands for Association of Car Rental Industry Systems and Standards. The code has four letters, each of which represents an attribute of the vehicle. First letter: Class M = Mini E = Economy C = Compact I = Intermediate S = Standard F = Full Size P = Premium L = Luxury X = Special Second letter: Type B = 2 Doors C = 2/4 Doors D = 4 Doors W = Wagon V = Van (6+ passengers) L = Limousine S = Sport T = Convertible F = 4-Wheel Drive P = Pick Up J = All Terrain K = Van (cargo) X = Special Third letter: Transmission A = Automatic M = Manual Fourth letter: Air Conditioning R = Yes N = No

Car classification is subjective since many vehicles fall into multiple categories or do not fit well into any. Not all car types are common in all countries and names for the same vehicle can differ by region. Furthermore, some descriptions may be interpreted differently in different places. Broadly speaking, there are a set of classifications which are widely understood in North America, and another set which are somewhat understood in English-speaking contexts in Europe. Some terms borrowed from non-English languages may have different meanings when used in their native language.

Gasoline Engines

Gasoline engines have the advantage over diesel in being lighter and able to work at higher rotational speeds and they are the usual choice for fitting in high-performance sports cars. Continuous development of gasoline engines for over a hundred years has produced improvements in efficiency and reduced pollution. The carburetor was used on nearly all road car engines until the 1980s but it was long realized better control of the fuel/air mixture could be achieved with fuel injection. Indirect fuel injection was first used in aircraft engines from 1909, in racing car engines from the 1930s, and road cars from the late 1950s.

Gasoline Direct Injection (GDI) is now starting to appear in production vehicles such as the 2007 BMW MINI. Exhaust gases are also cleaned up by fitting a catalytic converter into the exhaust system. Clean air legislation in many of the car industries most important markets has made both catalysts and fuel injection virtually universal fittings. Most modern gasoline engines are also capable of running with up to 15% ethanol mixed into the gasoline - older vehicles may have seals and hoses that can be harmed by ethanol. With a small amount of redesign, gasoline-powered vehicles can run on ethanol concentrations as high as 85%. 100% ethanol is used in some parts of the world (such as Brazil), but vehicles must be started on pure gasoline and switched over to ethanol once the engine is running. Most gasoline engines cars can also run on LPG with the addition of an LPG tank for fuel storage and carburetion modifications to add an LPG mixer. LPG produces fewer toxic emissions and is a popular fuel for fork lift trucks that have to operate inside buildings.