Toyota NBC platform explained

The Toyota NBC platform is an automobile platform for subcompact cars (B-segment cars) from Toyota.^[1] "NBC" stands for "New Basic Car" or "New Basic Compact".^{[2] [3] [4]} The NBC platform made its debut in January 1999 with the first generation Vitz; as such, it is also called the "Vitz platform".^[5] It is replaced by the newer B platform.

Features

• NBC cars can be either front-wheel-drive or all-wheel-drive.
• AWD variants use V-Flex II system, which is a viscous-coupling torque-on-demand.
• Engines are mounted transversely.
• Front suspension is MacPherson strut, while rear is torsion beam.
• Brakes are ventilated discs at front and leading-trailing drums at rear. Rear disc brakes were introduced in August 1999 as an option^[6] but came standard on models such as the European T-Sport and Japanese Vitz RS.

Models

• First-generation Vitz family:
  • Hatchback: XP10 — Vitz/Yaris/Echo (Japan/Europe/Canada/Australia)
  • Sedan: XP10 — Platz/Echo (Japan/Canada/United States)
  • MPV: XP20 — Fun Cargo/Yaris Verso (Japan/Europe)
• Various vehicles based on the first-generation Vitz:
  • AP10 — Porte
  • XP19 — WiLL Vi
  • XP30 — First-generation bB (Japan) and Scion xB (United States)
  • XP40 — First-generation Vios/Soluna Vios
  • XP50 — Probox/Succeed vans and wagons (use stretched wheelbase)
  • XP60 — First-generation ist (Japan) and Scion xA (United States)
  • XP70 — WiLL Cypha
  • XP80 — First-generation Sienta
  • XZ20 — Second-generation Raum

Notes

• Second-generation bB and xB are no longer based on NBC platform:
  • Second-generation bB uses smaller Passo/Daihatsu Boon "NC" platform (which is Daihatsu-rooted);
  • Second-generation xB utilizes larger MC platform.
• The third vehicle in the "WiLL" series — WiLL VS — was built on a larger MC platform.
• The full model code is depending on the engine, see List of Toyota model codes for formula.

EFC platform

Introduced in 2010, the EFC platform is derived from the NBC platform and used primarily for models sold in some emerging countries. The platform had been designed to cut down on non-essential parts and made it as low-cost as possible. "EFC" stands for "Emerging markets Frontier Concept" or "Entry Family Car".^{[7] [8]} This platform was later replaced by Daihatsu-developed DNGA-B platform starting 2022.^{[9] [10]}

Models

• AK10 — Etios

• XP150 — Third-generation Vios/Yaris

Notes and References

1. Web site: Akita . Masahiro . Shiohara . Kunihiko . 11 June 2012 . Observations on TNGA: How will Toyota's plans to make better cars affect suppliers . PDF . . 2 . https://web.archive.org/web/20140617142445/https://doc.research-and-analytics.csfb.com/docView?language=ENG&source=emfromsendlink&format=PDF&document_id=977831251&extdocid=977831251_1_eng_pdf&serialid=mloPNv7E0vSpbVXspCzREiMSkukb0pOZlgZROxrMRwE%3d . 17 June 2014.
2. Book: Itazaki, Hideshi . 1999 . The Prius That Shook The World . Tokyo . . 149 . 4-526-04376-1.
3. Web site: Part 3. Leaping Forward as a Global Corporation – Chapter 4. Rapid Expansion of Globalization – Section 6. Strengthening Development and Sales Efforts in the Japanese Market – Item 3. Reassessing Product Strategy . March 28, 2019 . 2012 . . https://web.archive.org/web/20130720014455/https://www.toyota.co.jp/jpn/company/history/75years/text/leaping_forward_as_a_global_corporation/chapter4/section6/item3.html . July 20, 2013 . live.
4. Web site: トヨタ博物館だより . 5 . March 2013 . https://web.archive.org/web/20130515002324/http://www.toyota.co.jp/Museum/kandayori/backnumber/magazine89/magazine89_all.pdf . May 15, 2013 . live . Toyota Motor Corporation.
5. News: Small Car, Big Hopes: Vitz/Yaris Expected to Boost Toyota in Japan, Europe . Treece, James B. . May 1, 1999 . https://web.archive.org/web/20190227194653/https://www.autonews.com/article/19990501/SUB/905010738/small-car-big-hopes-vitz-yaris-expected-to-boost-toyota-in-japan-europe . February 27, 2019 . . live.
6. Book: NCF176E . August 1999 . Toyota Motor Corporation . 2, 56.
7. Web site: Brooks . Glenn . 2012-02-17 . Analysis: Toyota attacks the Indian market, sales surge 89% . Just Auto . 2020-05-06.
8. Web site: Toyota Etios Review - Finally!. Bsmotoring. 2020-05-06.
9. News: Lye . Gerard . 2022-08-09 . 2023 Toyota Vios debuts in Thailand – bold new look; 1.2L NA, CVT; Toyota Safety Sense; DNGA; fr RM68k . . Driven Communications . Malaysia . 2022-08-10.
10. Web site: 2022-08-09 . ราคาอย่างเป็นทางการ All NEW Toyota Yaris ATIV : 539,000 - 689,000 บาท . 2022-08-09 . HeadLight Magazine . th.