The Japanese automobile manufacturer Daihatsu is producing a subcompact/supermini vehicle, called the Daihatsu Boon since 2004. It is also marketed under Toyota Passo and Daihatsu Sirion names in some markets.
In export markets, the Boon is offered as a second generation Sirion, while the first generation was offered in Japanese market as Daihatsu Storia.
First Generation (2004–2010)
The first generation Boon was launched in 2004 and was offered as Daihatsu Boon and Toyota Passo in the Japanese market. It was offered with two engine choices, i.e. 1.0-L and 1.3-L. However, a 1.0-L Turbo version was also released in later years as Boon X4. The most prominent difference between the Japanese and export market Sirion is the availability of automatic version featuring gear-shifter positioned by the steering on the dashboard and the handbrake located just under the steering. The Japanese market receives both front-wheel drive and all-wheel drive versions.
Originally, the Boon/Passo was built to comply with European market demands; hence it possesses a relatively larger and sturdy frame. The vehicle overall weight stands at 940 kg (2,072 lb).
The vehicle offers a wide range of safety features along with good fuel economy, spacious interior and split-folding rear seats. The cargo area increases to 630 liters (22 cubic feet) compared to previous 225 liters (7.9 cubic feet) with the introduction of folding seats. It is a perfect subcompact family vehicle.
The Malaysian automaker Perodua also introduced their version of Boon/Passo on May 25, 2005. It was introduced as Perodua Myvi. By improving the looks of the vehicle, Perodua made Myvi the best-selling vehicle for the consecutive four years, i.e. from 2006 to 2009.
The Boon/Passo received some restyling on December 25, 2006. This restyled version was marketed in the European markets under Sirion nameplate in the following year. In the same year, the Boon/Passo was released in the Indonesian market assembled from the parts taken from Perodua Myvi.
Subaru revealed their new Subaru Justy at the Frankfurt Motor Show in 2007. The Justy was based on the Daihatsu Sirion/Toyota Passo and was an entry-level model in the Subaru’s entire range. The introduction of Justy was not unusual as it was more than expected because of the Toyota stakes in the Subaru.
On December 25, 2008, a 7-seater version of the Boon/Passo was collaboratively produced by the Toyota and Daihatsu in the Japanese market. Toyota marketed it as Toyota Passo Sette, while the Daihatsu marketed it as the Daihatsu Boon Luminas. Toyota used the Italian term ‘Sette’ which means seven to refer to the vehicle 7-seater capacity. The Malaysian version was introduced under Perodua Alza nameplate.
Second Generation (2010–Present)
The second generation Boon was introduced by Daihatsu on February 15, 2010. Similarly, Toyota Passo also saw its second generation alongside Boon. The Malaysian Myvi version based on second generation Boon/Passo was recently launched on June 17, 2011.
While in Indonesian market, where Boon was launched as Sirion, the third generation Sirion was exhibited at the 19th Indonesian International Motor Show.