In this guide
To compare car dealerships in Mariano Roque Alonso, decide first whether you want a new car or a used one from a lot, and pay no deposit until you have seen the paperwork. The city's main avenue, where its larger businesses are, is Ruta PY03 (the old Transchaco) (Wikipedia (opens in a new tab)). Before you commit, get the chassis number, have a notary pull the Vehicle Registry certificate and, for a high-end used car or one offered on social media, have it checked by the police vehicle-control department.
New or used?
- New (0 km): any warranty must be in writing, in an official language and legible, stating what it covers and for how long (Law 1334/98, art. 11 (opens in a new tab)). Paraguay imported 38,611 new vehicles in 2025 and 57.8% were SUVs, according to the importers' chamber Cadam (Infonegocios (opens in a new tab)), so in that segment you can compare several brands.
- Used: if a vehicle is used, has a defect or was rebuilt, the seller must say so clearly (art. 12 (opens in a new tab)). Law 4333/2011 limits used imports to ten years old, but a Supreme Court ruling let older cars keep coming in (ABC Color, 2017 (opens in a new tab)). Check the year of manufacture on the documents, not how the car looks.
Where to shop without losing a morning on PY03
- On PY03: this is where the city's larger businesses are. The stretch towards Limpio was widened with flyovers and a roundabout (ABC Color, 2022 (opens in a new tab)), so check which side of the road each lot is on and where you can turn back. Visit the ones on the same side in one trip.
- Asunción or Limpio as a backup: if you want a specific model, add one or two options outside the city and compare the final price with paperwork, not the advertised one.
- Servicing counts too: ask where the car you buy gets serviced. If every service means crossing into Asunción at rush hour, add that to the cost.
- July is Expo month: the Expo runs at the Asociación Rural grounds in Mariano Roque Alonso, and organisers expected about 800,000 visitors in 2024 (ABC Color (opens in a new tab)). Traffic on PY03 builds up those weeks; shop in the morning or on other dates.
Documents to see before you pay
- Vehicle Registry certificate. The notary requests it; it shows the owner, the vehicle's status and liens such as pledges or seizures. It is issued within ten days and is valid for thirty (Acordada 503/2007 (opens in a new tab)).
- A clean chassis. The Registry blocks registration if the chassis is listed as stolen in the National Police or Mercosur databases (Acordada 503/2007 (opens in a new tab)). Match the number on the car with the papers.
- A public deed, not a private contract. Vehicle transfers are made by public deed; a private sale contract is not enough to register them (Vehicle Registry, 2023 (opens in a new tab)).
- An invoice. Every sale of goods and services must be invoiced (Sedeco via ABC Color (opens in a new tab)).
How to avoid buying a stolen car
In July 2026 the police warned that pick-ups and SUVs stolen in Brazil are being sold in Paraguay with forged documents, sometimes repainted, mostly through social media; the models named were the Toyota Fortuner and Hilux (ABC Color (opens in a new tab)). Their advice is to have the vehicle inspected before buying at the National Police Departamento de Control de Automotores, Paz del Chaco and Urundey, barrio Santa Lucía, Lambaré, phone (021) 302 820 or 302 229. The report gives no opening hours, so call first.
If you finance: what the plan must show
On a credit sale the seller must tell you the cash price, the interest and rate, the number and frequency of instalments and the total amount payable (Law 1334/98, art. 29 (opens in a new tab)). Ask each dealer for those figures in writing and compare the total, not the monthly payment. Also ask what early repayment costs.
Test drive tips
- Drive a stretch of PY03 and some neighbourhood streets to feel the brakes, suspension and any noises.
- Test the air conditioning standing still and moving: summer highs in Mariano Roque Alonso go above 40 °C (Wikipedia (opens in a new tab)).
- Ask to take the car to your own mechanic before signing. A serious dealer will agree.
- Do not transfer a deposit before you have seen the car and the Registry certificate.
FAQ
Where are the car dealerships in Mariano Roque Alonso?
The city's larger businesses are concentrated along Ruta PY03, the old Transchaco. Search "concesionaria" and "playa de autos" on your phone map and group the ones on the same side of the road.
How do I check a used car is not stolen?
Have a notary pull the Vehicle Registry certificate and, for a high-end car or one seen on social media, take it to the police Departamento de Control de Automotores, Paz del Chaco and Urundey, Lambaré, phone (021) 302 820.
Is a private sale contract enough to transfer a car in Paraguay?
No. According to the Vehicle Registry, transfers are made by public deed; a private contract is not enough to register them.
What must a dealer disclose if I buy on credit?
The cash price, the interest and rate, the number and frequency of instalments and the total payable, under article 29 of Law 1334/98.
