Toyota is expected to make some improvements to the new Sienta and release it on May 20 , 2024. While we have previously provided information on the Sienta on this site, this time we will focus on its maintenance costs.
When using a car, it’s important to understand the maintenance costs of owning one, such as gasoline, taxes, and insurance. This article introduces the gasoline costs, taxes, and insurance premiums of the Sienta, along with simulations. This information is useful for those who are considering purchasing a car, as well as those who are already owners. If you’re interested in the maintenance costs of a Sienta, be sure to check it out.

Sienta maintenance and running costs
Because the Sienta is a compact minivan, maintenance and running costs are relatively low.
- Automobile tax: 30,500 yen (1 year)
- Weight tax: 24,600 yen (every 2 years) for vehicles weighing 1,500 kg or less
- Voluntary insurance premium: Approximately 60,000 yen (1 year)
- Vehicle inspection fee: Approximately 80,000 yen (every 2 years)
- Parking fee: Approximately 30,000 yen (monthly)
- Fuel cost: Depends on mileage
- Consumables: car wash, engine oil, etc.
Sienta automobile tax: 30,500 yen (1 year)
Applying this to the table, the gasoline engine used in the Sienta’s gasoline vehicle is a 1.5L inline 3-cylinder engine M15A-FKS, while the hybrid vehicle uses a hybrid system that combines a 1.5L inline 3-cylinder engine M15A-FXE with a motor. Because this vehicle has an engine displacement of “more than 1.0L but less than 1.5L,” the automobile tax amount is 30,500 yen.
| Engine displacement | Automobile tax amount |
|---|---|
| 660cc | 10,800 yen |
| 1,000cc or less | 25,000 yen |
| More than 1,000cc but less than 1,500cc | 30,500 yen |
| More than 1,500cc but less than 2,000cc | 36,000 yen |
| More than 2,000cc but less than 2,500cc | 43,500 yen |
| More than 2,500cc but less than 3,000cc | 50,000 yen |
| More than 3,000cc but less than 3,500cc | 57,000 yen |
| More than 3,500cc but less than 4,000cc | 65,500 yen |
| More than 4,000cc but less than 4,500cc | 75,500 yen |
| More than 4,500cc but less than 6,000cc | 87,000 yen |
| Over 6,000cc | 110,000 yen |

Voluntary insurance premium: Approximately 60,000 yen (1 year)
Voluntary automobile insurance is insurance that car owners and users can voluntarily purchase to cover the portion of their insurance that is not covered by compulsory automobile liability insurance, or to prepare for damages that are not covered by compulsory automobile liability insurance . The main differences between compulsory automobile liability insurance and voluntary automobile insurance are as follows:
| item | Compulsory automobile liability insurance | Voluntary insurance |
|---|---|---|
| Join | compulsion | any |
| Coverage | Personal injury and property damage compensation | Personal injury and property damage compensation, vehicle insurance, passenger insurance, etc. |
| Compensation amount | minimum level | Subscriber’s choice |
| Insurance premiums | Depends on the vehicle type and age | Depends on the compensation |
Voluntary insurance mainly covers three types of coverage :
- Third-party liability insurance: Covers damages to the other party who is killed or injured.
- Property damage insurance: Covers damage to the other party’s property, such as vehicles and buildings.
- Vehicle insurance: Covers repair costs if your car is damaged in an accident.
You can freely combine these types of coverage to choose the coverage you need. The premium for optional insurance is determined by the coverage you choose, the type of car you own, your age, your accident history, and other factors.
This time, you can freely combine options, and the amount varies depending on the voluntary insurance company, so we think it will cost around 60,000 yen per year, including vehicle insurance.
Compulsory automobile liability insurance (17,650 yen for 2 years) required at the time of vehicle inspection
When purchasing a car, you pay the insurance premium for the period until the next vehicle inspection. The amount of automobile liability insurance premium differs between standard cars and light cars, and when purchasing a new standard car, it costs 17,650 yen.
Standard car: Automobile weight tax (weight tax) levied every two years (24,600 yen for two years)
Since it is a statutory fee that is included in the vehicle inspection fee, it will be listed in the vehicle inspection fee. The amount of automobile weight tax is determined for each vehicle model. The vehicle weight of the Sienta is 1,330kg to 1,420kg for hybrid vehicles and 1,270kg to 1,300kg for gasoline vehicles, so the weight tax is 24,600 yen for vehicles under 1,500kg. Private passenger cars are inspected every two years, while cargo vehicles are inspected annually.
| Vehicle weight | Less than 13 years since new registration |
|---|---|
| Less than 500kg | 8,200 yen |
| 1,000kg or less | 16,400 yen |
| 1,500kg or less | 24,600 yen |
| 2,000kg or less | 32,800 yen |
| 2.500kg or less | 41,000 yen |
| 3,000kg or less | 49,200 yen |
Here is an article about car taxes.
Vehicle inspection fee: Approximately 80,000 yen (every 2 years)
Vehicle inspection is a system to check whether a vehicle complies with the safety standards set forth in the Road Transport Vehicle Act. All vehicles must undergo inspection three years after purchase , and then every two years thereafter . We estimated that the inspection fee for the Sienta would be around 80,000 yen.
Gasoline costs
- Fuel economy for gasoline vehicles (2WD) is WLCT mode: 18.3km/L (12.5km/L)
- Fuel economy for hybrid vehicles (2WD) is calculated based on WLCT mode fuel economy: 28.2km/L (19.0km/L).
Calculation of driving 10,000 km when gasoline price is 170 yen per liter
- Gasoline model 10,000km = 136,000 yen
- Hybrid car 10,000km = 89,474 yen
Consumables and other expenses
Other expenses include car wash fees and parking fees when traveling.
Calculate the cost for one year
The calculations are based on a 10,000 km annual driving distance. Also, I’ve written “approximately” because I’ve divided each payment into one year. Other expenses and parking fees are not included in this calculation, as some people incur these fees and others do not.
| 1 year fee | Sienta gasoline vehicle |
Sienta Hybrid |
|---|---|---|
| automobile tax | 30,500 yen | 30,500 yen |
| Voluntary insurance premiums | Approximately 60,000 yen | Approximately 60,000 yen |
| Compulsory automobile liability insurance | Approximately 8,825 yen | Approximately 8,825 yen |
| Vehicle weight tax (weight tax) |
Approximately 12,300 yen | Approximately 12,300 yen |
| Vehicle inspection costs | Approximately 40,000 yen | Approximately 40,000 yen |
| Gasoline costs | Approximately 136,000 yen | Approximately 89,474 yen |
| total | Approximately 28,7625 yen | Approximately 241,099 yen |
*This is based on the latest automotive information, so please let us know if you find any mistakes.
The annual maintenance costs for a Sienta are about 290,000 yen for a gasoline-powered vehicle and about 240,000 yen for a hybrid vehicle . We hope this information is helpful when making your purchase.
A word from the editorial department
So far, we’ve focused on price, but we’d like to discuss comfort as well. If comfort is a priority, we recommend a hybrid vehicle. This is because hybrid vehicles offer better fuel economy and motor assistance than gasoline models, allowing for a more relaxed driving experience. Furthermore, they use the same engine and hybrid system already well-established in many models, including the Prius. The Sienta model boasts increased engine and motor output, providing even greater comfort. Annual maintenance costs are estimated to be around 240,000 to 290,000 yen. It’s important to consider these points when making your purchase.
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