Premium coupes blend style, speed, and sophistication, but choosing between the Infiniti Q60, Lexus RC, and Audi A5 requires weighing power, refinement, and practicality. This analysis breaks down their strengths across key areas, drawing from real-world tests and specs to guide your decision.
Powertrain Performance Breakdown
Each model delivers distinct driving dynamics. The Infiniti Q60’s 2.0-liter turbocharged four-cylinder produces 209 horsepower and 350 Nm of torque from just 1,250 rpm, paired with a seven-speed automatic transmission. This setup yields a 0-60 mph sprint in 7.1 seconds, outpacing the Lexus RC 300h’s hybrid system despite lower peak power.
The Lexus RC 300h F Sport combines a 2.5-liter four-cylinder with electric motors for 220 horsepower total, using a CVT transmission. Its 0-60 mph time lags at 8.3 seconds, prioritizing smoothness over outright acceleration.
Audi A5 2.0 TFSI quattro leads with 249 horsepower and 370 Nm from its turbo four-cylinder, backed by a seven-speed dual-clutch and all-wheel drive. It achieves 0-60 mph in 5.5 seconds, dominating straight-line speed.
| Model | Engine | Power (bhp) | Torque (Nm) | 0-60 mph (sec) |
|---|---|---|---|---|
| Infiniti Q60 2.0t | 2.0L turbo 4-cyl | 209 | 350 @ 1,250 rpm | 7.1 |
| Lexus RC 300h | 2.5L hybrid 4-cyl | 220 | 221 @ 4,200 rpm | 8.3 |
| Audi A5 2.0 TFSI | 2.0L turbo 4-cyl | 249 | 370 @ 1,600 rpm | 5.5 |
Handling and Ride Quality
On twisty roads, the Lexus RC shines with precise steering and strong front-end grip, enhanced by adaptive dampers in F Sport trim. Comfort mode softens the ride without sacrificing control, making it ideal for varied conditions.
The Infiniti Q60 offers punchy low-end torque but feels crashy over bumps, with a firmer suspension that transmits road imperfections. Its seven-speed auto shifts smoothly most times, though manual overrides via the lever can lag.
Audi’s quattro system provides superior traction, balancing agility and stability. Expect composed cornering and minimal body roll, though its firmer setup suits enthusiasts over daily commuters.
- Lexus RC: Confident handling, refined ride.
- Infiniti Q60: Energetic acceleration, harsher suspension.
- Audi A5: Grippy AWD, precise dynamics.
Fuel Efficiency and Running Costs
Real-world economy favors the Lexus RC 300h at around 32 mpg in tests, thanks to its hybrid tech, though CO2 emissions sit at higher levels due to the CVT. Audi A5 achieves competitive figures with 22 city/31 highway MPG in newer models, aided by efficient turbocharging. Infiniti Q60 trails slightly at 19/28 MPG, reflecting its performance focus.
Ownership costs vary: Lexus boasts strong residuals (47.3% after three years), minimizing depreciation. Infiniti suffers most here (35.1%), while Audi holds middle ground. Road tax for Q60 is £185 annually, with larger fuel tanks (80 liters) aiding range.
| Model | Test Economy (mpg) | CO2 (g/km) | Residual Value (%) |
|---|---|---|---|
| Infiniti Q60 | 32.8 | 156 | 35.1 |
| Lexus RC | N/A (hybrid est. higher) | N/A | 47.3 |
| Audi A5 | ~30 combined | Low | 41.7 |
Interior Comfort and Tech Features
Lexus RC offers a quiet cabin with plush seating and excellent insulation, ideal for cruising. Infiniti Q60 counters with modern tech like a responsive infotainment, though material quality lags behind rivals.
Audi A5 impresses with premium leather, multi-zone climate, and optional premium audio. Both Audi and Infiniti include blind-spot monitoring and adaptive cruise standard in tested trims. Lexus emphasizes durability with its warranty.
Boot space: Audi leads at 465 liters, followed closely by Infiniti (342 liters) and Lexus (340 liters). All seat four comfortably, but rear space is tight in coupe form.
Safety and Reliability Ratings
Audi A5 earned five Euro NCAP stars in 2015 testing (89% adult, 87% child protection), with standard autobraking and lane assist. Lexus and Infiniti lack specific NCAP data here, but both feature comprehensive aids like parking sensors and stability control.
Braking distances underscore safety: Audi stops from 70-0 mph in 43 meters, Infiniti in 44 meters, Lexus at 49.5 meters.
Pricing and Value Assessment
Entry prices hover around £37,000-£40,000. Infiniti Q60 starts lowest at £37,690 as-tested £39,150, offering strong value for performance. Lexus RC at £39,495 provides hybrid efficiency and residuals. Audi A5 at £39,575 adds AWD premium.
In the US market, 2021 models show Audi A5 at $44,000, Infiniti Q60 at $41,750, Lexus RC 300 at $42,220, confirming competitive positioning.
| Model | Base Price (£) | As-Tested (£) | Warranty |
|---|---|---|---|
| Infiniti Q60 | 37,690 | 39,150 | 4 yr/60k mi |
| Lexus RC | 39,495 | 40,490 | 4 yr/50k mi |
| Audi A5 | 39,575 | 39,575 | 4 yr/50k mi |
Daily Driving Verdict
For relaxed long hauls, Lexus RC’s refinement wins. Speed demons pick Audi A5’s power and grip. Budget-conscious drivers eyeing torque get the Infiniti Q60.
Noise levels at 70 mph: Audi quietest (66 dB), followed by Lexus (69 dB) and Infiniti (70 dB). Top speeds cap at 155 mph (Audi), 146 mph (Infiniti), 118 mph (Lexus).
Pros and Cons Summary
- Infiniti Q60: Affordable, torquey engine, big tank. Cons: Harsh ride, poor residuals.
- Lexus RC: Smooth hybrid, great handling, reliable. Cons: Sluggish acceleration.
- Audi A5: Fastest, safest, spacious boot. Cons: Higher price for AWD.
FAQ
Which has the best acceleration?
Audi A5 at 5.5 seconds 0-60 mph.
Is the Lexus RC fuel-efficient?
Yes, hybrid system excels in real-world mpg.
How do boots compare?
Audi 465L, others ~340L.
Best for safety?
Audi A5 with 5-star NCAP.
Which is cheapest to own?
Lexus RC due to residuals.
References
- Infiniti Q60 vs Lexus RC vs Audi A5 — Auto Express. 2017-03-10. https://www.autoexpress.co.uk/infiniti/q60/98880/infiniti-q60-vs-lexus-rc-vs-audi-a5
- Audi A5 vs. INFINITI Q60 Comparison — TrueCar. N/A. https://www.truecar.com/compare/audi-a5-vs-infiniti-q60/
- Compare 2021 Audi A5, INFINITI Q60, Lexus RC 300 — Cars.com. N/A. https://www.cars.com/research/compare/?vehicles=audi-a5-2021%2Cinfiniti-q60-2021%2Clexus-rc_300-2021%2Ctoyota-supra-2021