A5 vs CT5

Compare two new cars by price, estimated monthly payment, fuel economy, and other specifications. Data comes from the CarPayCheck.com catalog and uses your selected financing terms.

Audi A5
Audi

A5

Price from $50,200
Monthly payment $584
More details
Cadillac CT5
Cadillac

CT5

Price from $47,595
Monthly payment $553
More details

Specifications

  A5 CT5
Manufacturer Audi Cadillac
Starting price $50,200 $47,595
Monthly payment $584 $553
Fuel type Gasoline Gasoline
Fuel economy 26.0 mpg 21.0 mpg
CO₂ emissions 344 g/mi 346 g/mi–587 g/mi
Annual maintenance cost — —

Common issues

Audi A5

Yes, Audi issued recall 22V041 for 2021-2022 A5 models due to a software bug that can prevent the rearview camera image from appearing when reversing. The screen may stay black or frozen, increasing the risk of backing into objects or pedestrians. The recall remedy is a free dealer software update; out-of-pocket repairs for the infotainment module would cost $500-$1,200.

Yes, the MIB 3 infotainment system in 2020-2024 A5 models has documented instability causing screen freezes, random restarts, and Bluetooth/Apple CarPlay dropouts. This can make navigation and climate controls unresponsive, and if software updates fail, the entire head unit may need replacement. Post-warranty replacement costs $1,800-$2,500 installed.

Yes, the plastic water pump/thermostat housing on the 2.0L EA888 engine in 2019-2024 A5s is prone to leaking coolant, causing low-coolant warnings and visible drips. Left unchecked, it can lead to overheating and engine damage. Replacement costs $800-$1,500 at an independent shop, or over $2,000 at a dealer.

Yes, the panoramic roof drain tubes on 2019-2024 A5s can clog or pinch, leading to water intrusion on headliners, pillars, or footwells after heavy rain. This can damage seat electronics or cause musty odors, and prolonged exposure may corrode wiring and modules. Cleaning or re-routing the drains costs $200-$450, but water damage repairs can exceed $1,500.

Yes, the 7-speed S tronic dual-clutch transmission in 2019-2024 A5s can have mechatronic unit failures, causing hard shifts, hesitation, and even loss of drive. A flashing PRNDS warning light indicates a serious issue, and delaying repair can destroy clutch packs. Mechatronic replacement at a specialist costs $3,000-$4,500, while a full transmission replacement is $6,000-$8,000.

Cadillac CT5

Common-issue data is not available yet.

About this comparison

Audi A5 and Cadillac CT5 suit different driving needs. The main differences below cover price, monthly payment, fuel economy, and running costs.

A5 starts at $50,200; CT5 starts at $47,595. The difference is $2,605, making CT5 about 5% cheaper before financing.

Estimated monthly payment: A5 — $584; CT5 — $553. The difference is $31 per month, with CT5 lower.

Both models use Gasoline. Fuel economy is A5 — 26.0 mpg; CT5 — 21.0 mpg. A5 uses less energy in everyday driving.

The final choice is about more than numbers: annual distance, city or highway use, and the space your household needs all matter. Use the CarPayCheck.com calculator to apply your financing terms and evaluate both cars in your situation.

Want to compare other models? Return to the full catalog or calculate financing using your own terms.