Comparison

KIA K5 vs MERCURY TOPAZ

Side-by-side comparison of the KIA K5 and MERCURY TOPAZ drawn from the NHTSA consumer-complaint database, defect investigations, recall history, and NCAP crash-test ratings.

According to the National Highway Traffic Safety Administration (NHTSA), more than 2,000,000 consumer complaints have been filed against U.S. vehicles (2,054,142 as of August 2026). This is a head-to-head safety comparison between the KIA K5 (2021–2026) and the MERCURY TOPAZ (1983–1998), drawn from that federal complaint and recall record; see our methodology for how the figures are compiled.

The KIA K5 (2021–2026, 6 model years) carries 577 NHTSA consumer complaints and 9 safety recalls, while the MERCURY TOPAZ (1983–1998, 14 model years) carries 581 complaints and 0 recalls. Severity indicators for the pair split as follows: 54 vs 27 crashes, 11 vs 59 fires, and 7 vs 2 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the KIA K5, the leading complaint category is fuel/propulsion system (82 filings), followed by electrical system and unknown or other. For the MERCURY TOPAZ, it is seat belts (43), ahead of engine and engine cooling:engine:gasoline and electrical system:ignition. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests, three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.

KIA K5 vs MERCURY TOPAZ - NHTSA complaint, recall, and safety rating comparison
KIA K5 Metric MERCURY TOPAZ
5/5 Avg Safety Rating N/A
577 Total Complaints 581
9 Total Recalls 0
54 Crashes Reported 27
11 Fires Reported 59
79 Injuries Reported 19
7 Deaths Reported 2
6 years Years on Market 14 years

Top Complaint Categories

FUEL/PROPULSION SYSTEM
82
0
ELECTRICAL SYSTEM
70
0
UNKNOWN OR OTHER
64
0
ENGINE
63
0
POWER TRAIN
47
0
SEAT BELTS
0
43
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
0
43
ELECTRICAL SYSTEM:IGNITION
0
33
KIA K5 MERCURY TOPAZ

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Frequently Asked Questions

Which is safer, KIA K5 or MERCURY TOPAZ?
KIA K5 has 577 total NHTSA complaints with 54 crashes, while MERCURY TOPAZ has 581 complaints with 27 crashes. Review individual model years for specific safety ratings.
How many recalls does KIA K5 have compared to MERCURY TOPAZ?
KIA K5 has 9 recalls across 6 model years, while MERCURY TOPAZ has 0 recalls across 14 model years.
What are the most common problems with KIA K5?
The most commonly reported issues for KIA K5 are: FUEL/PROPULSION SYSTEM (82 complaints), ELECTRICAL SYSTEM (70 complaints), UNKNOWN OR OTHER (64 complaints), ENGINE (63 complaints), POWER TRAIN (47 complaints).
What are the most common problems with MERCURY TOPAZ?
The most commonly reported issues for MERCURY TOPAZ are: SEAT BELTS (43 complaints), ENGINE AND ENGINE COOLING:ENGINE:GASOLINE (43 complaints), ELECTRICAL SYSTEM:IGNITION (33 complaints), ELECTRICAL SYSTEM:IGNITION:SWITCH (32 complaints), ENGINE AND ENGINE COOLING:ENGINE (23 complaints).

Source: National Highway Traffic Safety Administration (NHTSA) complaints and recalls data