Editing Vehicle size class (section)

==Asia==

===China===
Vehicle size categories for passenger vehicles for the China NCAP program as defined by the China Automotive Technology and Research Center (CATARC) may appear similar to the European system, but are closer to the Japanese in application.
* ''Category A'' (A-segment) vehicles are two-box vehicles of between 4 and 4.5 meters in length, ''or'' [[Three-box styling|three-box]] vehicles (i.e., sedans with trunks) with engines of less than 1600 cc.
* ''Category B'' (B-segment) vehicles are longer than 4.5 m in length with engines of over 1600 cc.
* ''Multi-purpose vehicles'', or MPVs
* ''Sport utility vehicles'' or SUVs

===India===
The [[Society of Indian Automobile Manufacturers]] (SIAM) divides Indian passenger vehicles into the segments A1, A2, A3, A4, A5, A6, B1, B2 and SUV. The classification is done solely based on the length of the vehicle. The details of the segments are below:

{| class="wikitable"
|-
! Car segment !! Length of the car !! Classification !! Car model belonging to the segment
|-
| A1  || Up to 3,400 mm      || Ultracompact cars ([[A-segment|A]])|| [[Suzuki Alto]], [[Tata Nano]], [[Mahindra e2o]]
|-
| A2  || 3,401 to 4,000 mm    || Sub-four metre ([[B-segment|B]])||  [[Maruti Suzuki Wagon R]], [[Hyundai i10]], [[Suzuki Swift]], [[Suzuki Baleno (subcompact)]], [[Hyundai Xcent]], [[Honda Amaze]], [[Maruti Suzuki Dzire]], [[Ford Aspire]], [[Mahindra Verito]], [[Hyundai i20]],  [[Tata Zest]]
|-
| A3  || 4,001 to 4,500 mm    || Entry-level mid-size sedans ([[C-segment|C]])|| [[Hyundai Verna]], [[Honda City]], [[Suzuki Ciaz]]
|-
| A4  || 4,501 to 4,700 mm    || Small family cars ([[C-segment|C]])|| [[Toyota Corolla (E170)|Toyota Corolla]], [[Škoda Octavia]], [[Chevrolet Cruze]]
|-
| A5  || 4,701 to 5,000 mm    || Mid-size ([[D-segment|D]])<br>Executive cars ([[E-segment|E]]) || D-segment: [[Toyota Camry]], [[Škoda Superb]]<br>E-segment: [[Mercedes-Benz E-Class]], [[BMW 5 series]]
|-
| A6  || More than 5,000 mm || Grand saloons ([[F-segment|F]]) || [[Mercedes-Benz S-Class]], [[Audi A8]], [[BMW 7 series]], [[Jaguar XJ]]
|-
| B1  || <4,001 mm || Small vans ||[[Maruti Omni]], [[Tata Venture]]
|-
| B2  || >4,000 mm || Mid-size MPVs/minivans || [[Toyota Innova]], [[Suzuki Ertiga]], [[Mahindra Marazzo]], [[Kia Carnival]]
|-
| SUV || Any || SUVs || [[Renault Duster]], [[Honda CR-V]], [[Ford Endeavour]], [[Hyundai Creta]], [[Audi Q7]], [[Toyota Land Cruiser]]
|}

=== Japan ===
Vehicle size classes in Japan are rather simple compared to other regions. The classifications were established under the [[:ja:道路運送車両法|Japanese Government's Road Vehicle Act of 1951]].<ref>[http://law.e-gov.go.jp/htmldata/S26/S26HO185.html Road Vehicle Act of 1951 (Japanese)]</ref><ref>[https://archive.today/20130130055050/http://njkk.com/about/industry4.htm Japanese Postwar Reconstruction]</ref> There are just three different classes defined by regulations.  The dimension regulations are enforced to exact measurements. These standards of classification are enforced on all vehicles within the jurisdiction of Japan, and no special consideration is made for the vehicles' origination of manufacture. The Japanese law regulates all vehicles that do not travel on railroads (traditional or [[maglev]]), or are not powered by physically contacting [[Overhead line|overhead power lines]]. The law regulates vehicles that are powered by an autonomous power source. Smaller cars are more popular in Japan due to the confined driving conditions and [[Speed limits in Japan|speed limits]].
* ''[[Kei car|Keijidosha]]'' (light cars): Buyers of ''Kei'' cars enjoy a number of tax, registration and other benefits to encourage the purchase of these tiny vehicles (among road vehicles requiring a license only). Regulations have been updated a number of times over the years to allow larger, more powerful cars to be developed and maintain demand as buyers become more affluent, and to improve collision protection performance. The current regulations state that a kei car is a vehicle less than {{convert|3.4|m|ft|1|abbr=on}} long, {{convert|1.48|m|ft|1|abbr=on}} wide, {{convert|2|m|ft|1|abbr=on}} high, with a maximum [[engine displacement]] of {{convert|660|cc|abbr=on}} and maximum power of {{convert|64|PS|kW hp|0|abbr=on}}. Extra small [[microcar]]s are available with an engine size no larger than {{convert|49|cc|abbr=on}}, identified with a light blue license plate and blue text.
* ''[[Compact car|Small size Passenger vehicles]]'', commonly called "5 number" vehicles in reference to their [[Vehicle registration plates of Japan|license-plate prefix]]. This class is defined as limited to vehicles less than {{convert|4.7|m|ft|1|abbr=on}} long, {{convert|1.7|m|ft|1|abbr=on}} wide, {{convert|2|m|ft|1|abbr=on}} high and with [[engine displacement]] at or under {{convert|2000|cc|abbr=on}}. Vans, trucks and station wagons (considered commercial vehicles in Japan) in the compact size class receive a "4 number" license prefix. Before 1989, the annual tax rate of normal-size class was more than doubled of this class so that most Japanese cars were built within small-size class requirement. Now the annual tax rate only varies with engine displacement however useful small-size class cars are still popular in Japanese market, and Japanese manufacturers make regular improvements to compact sized products to maximize interior accommodation while remaining within the exterior boundaries.
* ''[[Mid-size car|Normal-size passenger vehicles]]'', commonly called "3 number" in reference to their [[Vehicle registration plates of Japan|license-plate prefix]] (trucks and buses over 2000&nbsp;cc have license plates numbers beginning with ''1'' and ''2'' respectively), are those more than {{convert|4.7|m|ft|1|abbr=on}} long, {{convert|1.7|m|ft|1|abbr=on}} wide, {{convert|2|m|ft|1|abbr=on}} high or with [[engine displacement]] larger than {{convert|2000|cc|abbr=on}}. This regulation also mandates that passenger vehicles for private use may not exceed {{convert|6|m|ft|1|abbr=on}} length or {{convert|2|m|ft|1|abbr=on}} width. Based on market conditions, vehicles such as the first generation [[Honda Legend#First generation (KA1-KA6, 1985-1990)|Honda Legend]] (shorter and narrower V6Gi and V6Zi variants with a 2.0 V6 engine), and the [[Mitsubishi Starion]] were produced in both "compact size" (''just'' under 4.7&nbsp;m long and 1.7 m wide) for the Japanese market, and longer or wider "passenger size" versions, primarily for export.

[[Motorcycles]] also have classification definitions based on engine size:
; Class I moped : Engine size must be at or less than 50&nbsp;cc, identified by blue text and white extra small license plate.
; Class II moped (B) : Engine size is between 50–90&nbsp;cc, identified by blue text and yellow extra small license plate.
; Class II moped (MIG) : Engine size is between 90–125&nbsp;cc, identified by blue text and pink extra small license plate (colour of plate can vary according to regional requirements)
; Motorcycle light : Engine size is between 125–250&nbsp;cc, identified by green text and white small license plate.
; Motorcycle medium : Engine size is between 250–400&nbsp;cc, identified by green outline and green text with white small license plate.
; Motorcycle large : Engine size is over 400&nbsp;cc, identified by green outline and green text with white small license plate.

All [[vehicles]] with an engine displacement over 250&nbsp;cc are required to undergo an [[Motor-vehicle inspection (Japan)|inspection]] (called "Shaken" in Japan). Vehicle weight tax and mandatory vehicle insurance are usually paid at this time. This is separate from the [[Road tax#Japan|road tax]] paid yearly. The road tax varies from {{currency|3,000|JPY|linked=yes}} for kei cars up to {{currency|22,000|JPY|linked=no}} for normal size cars with 4.6L engines.