Coincidentally, this subject has a lot of sentimental value to me because I wrote about it in the 15th article of BigFatPurse.coms history. That was in 2007! Reading that article brought back memories of me typing away on my bed in the wee hours. It wasnt tough. It was enjoyable in fact.
Given all these years of writing and garnering more experience in life, I am sure I can deliver the answer to this question much better than the earlier article I have written.
Cars are known to be exorbitant in Singapore. Or should I say disgustingly expensive?
We have this thing called Certificate of Entitlement (COE) that is unheard of in many countries around the world. This COE alone can be more expensive than the car itself! Of course, the reasoning behind this was to regulate the car population in Singapore, so as not to clog up the small island of ours and everyone spend their time in traffic jams.
There are two parts to tackle this question. First, how much does the cheapest car in Singapore cost to own and operate? Second, to calculate the salary to afford the car costs comfortably, considering other living expenses? Ready? Lets begin!
Part 1 Estimate the Cost Of Car Ownership
The Cheapest Car In Singapore (Circa 2018)
There are a few important assumptions:
 We are talking about new cars and not buying second hand ones.
 A car loan will be taken (lets be realistic most people buy with loans).
 Passenger cars and not commercial vehicles.
 Cheapest automatic transmission car (nowadays who drives manual like me?!).
Drum roll for the cheapest car
Sporting a 1 engine with automatic transmission and 67 bhp horsepower. All for S$66,800, inclusive of COE, and I got this info from sgcarmart. (The car price actually comprises 7 components and if you want to know all of them, head on to this article.)
The cheapest car available in Singapore is made in China Malaysia while it used to be from South Korea. The Kim Chi and Bak Kwa cars have been beaten by the Satay cars in terms of cost. By the way I have weird nomenclature for cars depending on where they are made. There are Sushi and Tom Yum cars too.
So we start with the price tag of S$66,800, assuming you have no upgrade requests and the dealer has no hidden costs for you.
Step 1: Calculate monthly installment
Assuming you take the maximum loan tenure which is 7 years and the loan is also capped at 70% of the car price, since the Open Market Value (OMV) for Perodua Axia should be less than S$20,000. For your information, the maximum car loan will be 60% of the car price for cars with OMV higher than S$20,000.
Here are the breakdown of the car price to be funded by:
 Loan = S$46,760 (70%)
 Cash = S$20,040 (30%)
And here are the loan details using the installment calculator
 Interest Rate = 2.78%
 Term = 7 years
 Total Interest = S$9,099
 Monthly Installment = S$665
Step 2: Determine the Road Tax Payable
You can use this calculator to get your road tax.
The amount for Perodua Axia as a 998cc car would be S$392 per year, or S$33 per month.
Step 3: Estimate Car Insurance Premiums
The insurance premium varies with a few factors such as age, job nature, and car type.
I requested a quote using a 35year old male, 0 NCD, working indoors, and driving the Perodua Axia.
The annual insurance premium was about S$2,240. We will also not go into details of the amount of excess etc. as we are just getting an estimate.
This works out to be S$187 per month.
As age catches up and with good and clean driving records, this premium is likely to lower.
Step 4: Estimate petrol cost
 Perodua Axia is expected to do 22.5km per litre of petrol. But I dont think the reality would reflect the theoretical numbers. Maybe we assume 16km per litre which is more reasonable
 Assuming an average of 50km per day, or 1,500km per month.
 The prevailing petrol price is about S$2.23 per litre (95Octane) (check here for latest).
 Monthly petrol cost = S$209.10
Step 5: Estimate Parking Costs
Most drivers would buy season tickets at the carparks near their homes. Some may even need to pay season parking at their work place. Lastly, shopping on weekends can also incur expensive parking too which we need to include.

would be S$110 per month, assuming a HDB multistorey carpark as most Singaporeans stay in public housing.
 Season parking for office varies greatly as it depends on the location. Lets assume S$200 per month.
 Parking at shopping centres can be quite expensive. Lets average out to assume $2.20 per hour. Assuming 20 hours of such parking per week, or 80 hours per month, the monthly cost will be S$176.
 Occasionally you will need to park in URA carparks and need the parking coupons. Lets assume you buy two sets of coupons per month for S$24.
 Total monthly parking cost = S$510
Step 6: Estimate ERP Costs
Depending on the route you take, if you journey to central area during the peak hours, expect to pay a lot for it.
Lets assume $2 per day, less Sunday which the ERP gates are not in operation. It would cost about $40 per month.
Step 7: Estimate Car Fines
Occasionally you forgot to insert the cashcard into the card reader and passed the ERP gantry. Or you have not prepared enough coupon duration to park your car and you got caught by summon lady.
This should be infrequent and we assume it will average out to S$20 per month for the fines.
Step 8: Estimate Car Servicing and Repair Costs
Car servicing ranges from the regular ones to the major ones. The regular ones, assuming no other repairs, would cost around S$200 and to be done at every 10,000km or 6 months of driving.
The major servicing comes around every 40,000km of driving where you would need to change out the fluids and worn out belts and tyres in your car. We will add S$400 to the regular servicing every 2 years.
You hope that you didnt get a lemon. If yes, your repair fees will sky rocket. A clutch replacement costs around S$1,200. I had a seat railing that rust and had to replace at S$800. Shock absorbers will go some time in the lifespan of the car and cost at least S$1,000 for four sets.
It is hence very difficult to estimate the required repair costs. Lets set aside S$1,500 per year for the repairs.
Total servicing and repair cost per month = S$175 Given rising costs, we up this to $200/month
Step 9: Car Wash
Most Singaporeans do not wash their own cars. A trip to the petrol kiosk for washing will cost S$8 per week, or S$32 per month.
Step 10: Car Accessories
Assuming you are not a car vain pot and do not add unnecessary accessories in the car, but you would like to buy some fragrance to keep you calm during your hectic drive. It would cost about $7 per month.
Step 11: Sum It All Up!
tl;dr
How much you need to spend per month (minimum) on a car in Singapore:
 Car loan installment = S$665
 Road tax = S$33
 Insurance premium = S$187
 Petrol cost = S$209
 Parking cost = S$510
 ERP cost = S$40
 Fines = S$20
 Servicing and repair = S$200
 Car wash = S$32
 Car accessories = S$7
Total = S$1,903
And do not forget the S$20,040 downpayment you have to pay in cash!
Part 2 Calculate Required Monthly Salary
There are a few big ticket items Singaporeans fund their purchases with debt. They are using house and car. All these contribute to the debt servicing budget for loan repayments.
Comparing these two assets, I believe most Singaporeans prefer to have the house if they have to choose between the two. Hence, it is important to make sure you do not over commit to the car and realised you do not have enough allowance to take up a mortgage loan!
A typical 4room HDB flat would cost around S$470,000 and a 20year loan at 2.6% would mean a monthly mortgage of S$2,500. Shared equally between husband and wife, each will have to commit S$1,250 of their monthly salary to service the debt.
The current Minimum Servicing Ratio for HDB is 30%. This takes into account of both fixed monthly and variable component of your salary. For simplicitys sake, we will assume fixed monthly salary.
Applying the 30% MSR limit, the gross monthly salary have to be at least S$4,167 to qualify for the mortgage loans.
You can use the mortgage calculator and MSR calculator to cater to your own context.
In actual fact, you need to earn more than S$4,167 to own the house and the car at the same time because of your living expenses.
You can also argue that not all the loan repayments are made in cash. You can use CPF for mortgage payments.
The amount of mortgage that can be paid with CPF monies:
 23% of the gross salary goes to CPF Ordinary Account = S$958.41
 Another S$291.59 have to be topped up in cash per month for the mortgage loan
Calculate the available salary to spend on your living expenses:
 80% of gross salary as 20% is CPF contribution = S$3,333.60
 Cash payments for loans = S$291.59
 Car expenses = S$1,903
 Remaining salary for other living expenses = S$1,130.01
Assuming you would need at least S$2,000 per month for your living expenses and that means you need to earn about S$861 more to own the car. Moreover, you should not be stretching so thinly because you need to have savings and investments to decrease your dependency on the salary.
After sooooo many calculations, heres the answer:
You need to earn at least S$5,000 per month to own a car in Singapore!
If you can afford a car and need it to minimise hassle and time to travel, better make use of your freed up time and energy wisely.