How I Made $5K and Built My Full Supra Diecast Collection From My Hot Wheels Hobby While Studying in Australia
It Started With Fast & Furious
Before I moved to Australia, I was already obsessed with cars.
I grew up watching Fast & Furious and fell deep into the JDM world. Nissan Skylines, Toyota Supras, Mazda RX-7s. I could talk about these cars for hours. It wasn't just a car thing, it was a whole culture thing.
So when I came to Australia in 2023 to study, I brought that love with me. I just didn't think it would end up giving me a huge collection, a bunch of genuine friendships, and yeah - some money on the side too.
The Friend Who Got Me Into It
A few months after arriving, my friend Minh Huy introduced me to Hot Wheels collecting.
My first reaction was honestly like... okay these are toys. But then I actually looked at them. The detail, the JDM castings - a tiny Nissan Skyline GT-R, a little Supra, a miniature RX-7. For someone who grew up loving those cars, it hit different.
So me, Minh Huy, and my other friend Loc started going to Kmart and Target together just to check what new models came in. Nothing serious. Just something fun to do after class, a reason to get out of the house.
Of course, Kmart runs weren't always a win. Half the time the pegs were completely bare - either another collector had come through an hour earlier, or worse, an employee had pulled the good stuff aside before it even hit the floor. There's a whole silent war happening at the Hot Wheels pegs that most people have no idea about.
Then one day we found the Facebook groups.
Wait, People Are Paying Double For These?
There are Hot Wheels Buy/Sell/Trade groups on Facebook specifically for Australian collectors. We stumbled onto them and honestly our minds were blown.
Cars we bought at retail for $2-$3 were being listed for $6, $8, $10. Some rarer castings went even higher. People were actively hunting specific models and willing to pay for them.
That's when it clicked.
We were going to Kmart and Target anyway. We were already hunting. So why not sell the good ones instead of keeping everything?
The logic was simple: find the right car, double your money. Same trip, one extra step.
We decided to try it.
Learning What Australians Actually Want
First thing we figured out: you can't just grab any Hot Wheels and expect to sell it. You need to know your market.
Australians have their own favourites. JDM is huge here - which worked for us because we already loved those cars. Nissan models sell well. Holden too, which is an Australian brand with a massive cult following. Ford Falcons are popular. And anything in the luxury or premium range moves fast.
We spent time just scrolling through the Facebook groups - watching what sold quickly, what got comments flooding in, what people were requesting. Over time we built a proper feel for it.
The main thing we learned: every market has its own favourites. Don't just buy what you think looks cool. Buy what people in your market are already asking for.
How the Selling Actually Works
Here's the full process, start to finish.
Step 1: Find the cars. We'd head to Westfield malls after class - that's where the Kmart and Target stores are. Check the Hot Wheels pegs for new arrivals, anything with demand, anything rare we hadn't seen before.
Step 2: Take photos. Before listing anything, take clean photos. Good lighting, clear shots of the car and packaging. Your photo is basically your listing - buyers decide based on that before anything else.
Step 3: Post in the Facebook group. These groups have their own culture. People comment F to follow a listing (means they want to be notified). They comment Sold when they're ready to buy. First "Sold" in the comments gets the car.
Step 4: Pack and ship. Once sold, sort payment, pack the car carefully, and drop it at Australia Post. Most buyers are happy to cover postage on top of the price.
The whole loop - find, photograph, list, sell, ship - became pretty routine after a while.
The Smarter Move: Stop Hunting, Start Trading
After a while we noticed the Westfield runs weren't the most efficient.
Public transport costs money. Getting to the mall, walking the aisles, coming home - it ate up a lot of time for results that weren't always guaranteed. We were spending effort and getting inconsistent back.
So we changed it up.
Instead of only buying at retail, we started buying from other sellers in the Facebook groups. Some sellers needed quick cash and priced cars cheap. Others just didn't know the full value of what they had. We could spot underpriced listings, grab them, and resell at proper market rate.
Way better model. We controlled our time, we knew what we were getting, and the margins were more predictable.
We shifted from hunting to trading - and honestly that's when it really started working.
The Payoff: $5K and a Whole Shelf of Toyota Supras
Here's how we managed the money side of things.
We kept a two-week stock cycle. Buy a batch, sell it within two weeks, use the cash to buy the next batch. Cash always kept moving. We were never sitting on dead stock, never over-committed to models that weren't shifting.
The profit we used two ways: reinvest into better stock, and treat ourselves to the cars we actually wanted to keep long-term.
For me that meant building up a proper Toyota Supra collection - every casting, every colour variation I could get my hands on. For Loc it was the Subaru 22B - a legendary JDM model and one of the most wanted Hot Wheels out there.
Total profit across the whole run: around $5,000 AUD.
For two students juggling uni assignments? Not bad at all.
What's More Valuable
Hot Wheels started as three friends killing time between classes. It stayed a hobby - and honestly that's exactly why it worked. The money was never the point. The Supra collection and the 22B are the point.
But the best part is probably the people. Through the Facebook groups and the local community, we made some genuinely good friends along the way. People older than us, people with families and kids, people at completely different life stages - and yet here we all are, just grown kids with a thing for tiny cars. Shoutout to Maddy, Haidar, Nabil, and everyone else who's been part of it.
That's what a real community does. The hobby brings people in, the people make you stay.
One moment that really stuck with me: a guy I met through the groups reached out and invited me to help organise a Hot Wheels convention. He had direct relationships with people at the factory and was looking at doing a custom car collaboration - think limited runs, exclusive castings designed specifically for the event. That's the kind of thing that only happens when you've been genuine about the hobby. Not chasing it for the money. Just being there, consistently, because you actually love it.
If you're even a little bit into cars, the collector scene here in Australia is worth exploring.
Just don't be surprised when you fall in love with it.
What I'd Tell Someone Starting Out
To be honest - we never thought of this as a side hustle. We didn't look for distributors, didn't try to scale it, and we stayed away from anything that would make it feel like actual work. Going down that road brings in questions about tax and legalities that we had zero interest in dealing with as students. We just wanted to grow our collections and have fun doing it.
The $5K wasn't the goal. It was just what happened because we were enjoying something we were already doing.
If you're thinking about doing something similar, here's what actually helped us:
Research before you buy. Spend time lurking in the Facebook groups before spending a single dollar. Watch what sells, what gets comments, what people are asking for. The market tells you everything.
Know your local market. Australian collectors love JDM, Holden, and Ford Falcon. What works in the US might not work here. Know who you're selling to.
Photograph properly. Your photo is your listing. Blurry shot on a carpet = no one's buying. Keep it clean and well-lit.
Two-week rule. Don't sit on stock. If something hasn't sold in two weeks, lower the price or bundle it. Keep the cash moving.
Buy smart, not just cheap. The best deals aren't always at retail. Once you know market value, you can spot underpriced listings and trade at a solid margin.
Keep it a hobby. The moment it starts feeling like a grind, you've lost the point. We kept it fun and that's why we kept doing it.
Hot Wheels 101: The Basics Nobody Explains
Everything above is my story. This part is the groundwork I had to piece together myself, in one place.
Diecast collecting works like any other collectibles market - trading cards, or Marvel and Star Wars figures. A car is worth what it's worth because of three things: the casting itself, how rare it is, and what supply and demand look like at that moment. There's nothing more mystical to it than that.
Scales
Model cars come in fixed scales, and the scale sets the price bracket before anything else does.
- 1:64 - the standard Hot Wheels size, the ones hanging on the Kmart pegs. Cheapest way in and by far the biggest market.
- 1:43 - the other common one. More detail, more money.
- 1:18 - display pieces. Serious detail, serious prices.
- 1:32, 1:24, 1:12, 1:87 - all standard sizes too, just smaller markets.
Anything outside those exists but barely trades. If you're starting out, start at 1:64. That's where the community is.
Who Makes What
Every scale has its own set of respected manufacturers, and the brand drives value as much as the model does. It's basically a proxy for how much detail went into the casting.
1:64 - Hot Wheels, Matchbox, Mini GT, Poprace, Tarmac Works, Inno64, Tomica, Majorette, Greenlight, Auto World, Top Secret, BM Creations
1:43 - Hot Wheels, Solido, Spark, Norev, AutoArt, MiniChamps, EBro, Bburago, Kyosho, TSM
1:18 - ICD, OttoMobile, TechnoModel, TopSpeed, Solido, Whelart
Where to Learn
- Hot Wheels Fandom wiki - look up any casting, any year, any series. Covers the other brands too.
- Lamley Group - reviews and leaks on what's coming next. Useful for knowing what to watch for before it hits shelves.
- Mattel's own collector app, for tracking what's already in your collection.
Where to Buy, Sell, and Trade
Almost none of this happens in shops. It happens in Facebook groups, and each one has its own rhythm - lurk for a week before you post anything.
Australia
Vietnam
- Mua bán và trao đổi xe
- CLB Mô Hình Tĩnh
- Passion Diecast
- Nghiện Hot Wheels
- Mua bán đấu giá mô hình
- Admin Hobby Store
- A few more worth joining: here, here, and here
Malaysia
Shoutout to Minh Huy for pulling me into this hobby, and to Loc for hunting around New South Wales with me from day one. Couldn't have done it without you both.