[1] Slotted below the compact Corolla, the Vios serves as the replacement to the Tercel (marketed as Soluna in Thailand since 1997 and Indonesia since 2000), which filled the subcompact or B-segment sedan class in the region.

The second-generation Vios was released in 2007, which was marketed as the Belta in Japan and Toyota Yaris sedan in the Americas,[2] the Middle East and Australia.

The heavily facelifted model also gained more global presence by local production in Brazil, India and Pakistan as the Yaris sedan.

[7] The first-generation Vios, codenamed XP40, was first previewed as a prototype model called the Toyota T-1, which was showcased in Beijing during Auto China 2002 in June.

The Vios was adapted from the Platz with modified body panels and portions of the car feature design cues from the E120 series Corolla.

Updates included the front bumper, headlights and tail lights, redesigned alloy rims, speedometer dial design, and added a console box in the interior.

It has a digital speedometer, silver steering wheel trims, foldable wing mirrors, foglamps, chrome door handles and boot lid garnish.

[16] Standard on the Vios Turbo are a functional scoop on its bonnet, wrap-around body kits, stiffer springs, firmer shock-absorbers and 16-inch alloy wheels.

The second-generation Vios is a renamed Japanese market Belta sedan with varying trim levels and equipment sold in Southeast Asian countries and China between April 2007 and March 2013.

The exterior was enlarged over the front and rear sections and its styling outline was later followed by the XP150 series Yaris hatchback for the Southeast Asian market.

The facelifted Vios is sold in Singapore, Brunei, Vietnam, Indonesia, Malaysia, Taiwan, the Philippines, Myanmar, Laos, and Cambodia.

The platform used are based on the Vios sold in China and Thailand, but additional welds make it more rigid to provide better handling and ride.

In January 2017, the Vios was reintroduced to the lineup with the newer 2NR-FE engine and continuously variable transmission (CVT) with 7-speed sport sequential mode and was available from the local dealership for a short period of time until April 2017.

[50] In January 2021, the Vios received a minor facelift with a revised front end and added connectivity features such as Apple CarPlay and wireless Qi charging.

The G model came loaded with disc brake on all wheels, chrome outside & inside door handles, leather interior, Optitron meter with MID, and 360-degree parking sensor.

The headlining features are the "10-speed CVT" – which Toyota programmed the stepless automatic gearbox to have 10 virtual ratios in its manual mode, and sports-tuned suspension.

The GR-S trim is available exclusively at GR Garage outlets and Toyota dealers participating in the Vios Challenge, a one-make race series in Malaysia.

Starting from December 2013, the Vios had been made locally assembled in Karawang, where the vehicles were exported to Brunei and GCC countries under the Yaris sedan nameplate.

The top-of-the-line G has all around disc brakes, 16-inch alloy wheels, Multi Information Display (MID), and for the G with CVT gearbox also comes with paddle shifter.

In 2021, the Taiwanese Vios received minor changes with black plastic front bumper garnish on each side and restyled 15-inch alloy wheels.

[109][110][111] The fourth-generation Vios is based on the DNGA-B platform shared with the W100 series Avanza/Veloz, although unlike any other Daihatsu-developed models, the Daihatsu-badged equivalency is not offered.

Compared to its predecessor, the car features a fastback-like sloping rear roof section which stretched the window line further back.

[114] Globally, Toyota build the Vios or Yaris sedan in 3 different model grades, which in some countries are called base, E, and G. Power comes from either 1.3-litre or 1.5-litre matched to 5-speed manual gearbox or 7-speed simulated CVT.

The interior of the AC100 Vios/Yaris is made to be more premium in appearance than past Vios models, with many areas covered by soft touch materials and an optional 64-colour ambient lighting system (only available in higher grades).

Eligible under the Eco Car tax incentive program, it is equipped with the 1.2-litre 3NR-VE engine with Dual VVT-iE technology rated at 69 kW (94 PS; 93 hp) and 110 N⋅m (11.2 kg⋅m; 81.1 lb⋅ft), paired with a Toyota-made CVT gearbox marketed as Super CVT-i.

[117] Produced at the Gateway plant in Chachoengsao, sales figures target in Thailand is set at 3,500 units per month, with exports planned to over 35 countries.

According to Daihatsu, the inside lining of the front-seat door was improperly modified with a "notch" to prevent the part from breaking into pieces with sharp edges that could injure occupants during a side airbag deployment.

However, Toyota suspended deliveries to Thailand until the vehicles are retested for the third time to satisfy a specific "witness testing" requirement in that market.

Based on the G model with manual transmission, the Vios race car is slightly modified from the production vehicle to improve performance.

It has TRD clutch cover and disc, limited-slip-differential, upgraded muffler set, roll cage, Brembo sport brake pads, and OMP bucket seat with six-point seatbelts.