Audi S5 vs Cadillac CT5-V: cost to own

Verdict, over 6 years

The Audi S5 costs about $4,253 less

That's $59 a month. Closest matching trims: same fuel and drive where possible.

S5 TFSI quattro S tronic✓ $1,856/moTrue cost

CT5-V V-Series RWD$1,915/moTrue cost

2026 Audi S5

Closest matching trim: S5 TFSI quattro S tronic

Sticker (MSRP)$70,950

+$13,384→↓Freight, fees, HST

Drive away$84,334

+ running costs→↓− $34,766 resale

True cost$1,856/moA month to own, after resale

2026 Cadillac CT5-V

Closest matching trim: CT5-V V-Series RWD

Sticker (MSRP)$70,499

+$13,395→↓Freight, fees, HST

Drive away$83,894

+ running costs→↓− $31,366 resale

True cost$1,915/moA month to own, after resale

Line by line


Price
Sticker (MSRP)	$70,950	✓ $70,499	CT5-V by $451
Freight and fees, before tax	✓ $3,682	$3,744	S5 by $62
Sales tax (HST)	$9,702	✓ $9,652	CT5-V by $50
Drive-away price	$84,334	✓ $83,894	CT5-V by $440
Running costs, 6 years
Fuel or charging	✓ $20,380	$22,378	S5 by $1,998
Insurance (estimate)	$17,025	✓ $16,959	CT5-V by $66
Maintenance (estimate)	$12,850	✓ $12,389	CT5-V by $461
Loan rate	6.5%	6.5%	—
Loan interest	$16,685	✓ $16,593	CT5-V by $92
Lost return on your money	$17,006	✓ $16,921	CT5-V by $85
Resale after 6 yrs	✓ −$34,765	−$31,366	S5 by $3,399
Total
True cost	✓ $133,605	$137,858	S5 by $4,253
True cost a month	✓ $1,856/mo	$1,915/mo	S5 by $59
You pay each month	✓ $2,033/mo	$2,046/mo	S5 by $13
Practical
Fuel type	Premium gas	Premium gas	—
Seats	5	5	—
Carry-ons, 2 people	Not published	3	—
Cargo behind row 2, litres	Not published	337	—
Length	—	4.92 m	—
Resale % after 6 yrs	✓ 49%	44%	—
US crash test	Not rated yet	✓ 5★	—

Price

Sticker (MSRP)

S5 TFSI quattro S tronic $70,950CT5-V V-Series RWD ✓ $70,499Cheaper by CT5-V by $451

Freight and fees, before tax

S5 TFSI quattro S tronic ✓ $3,682CT5-V V-Series RWD $3,744Cheaper by S5 by $62

Sales tax (HST)

S5 TFSI quattro S tronic $9,702CT5-V V-Series RWD ✓ $9,652Cheaper by CT5-V by $50

Drive-away price

S5 TFSI quattro S tronic $84,334CT5-V V-Series RWD ✓ $83,894Cheaper by CT5-V by $440

Running costs, 6 years

Fuel or charging

S5 TFSI quattro S tronic ✓ $20,380CT5-V V-Series RWD $22,378Cheaper by S5 by $1,998

Insurance (estimate)

S5 TFSI quattro S tronic $17,025CT5-V V-Series RWD ✓ $16,959Cheaper by CT5-V by $66

Maintenance (estimate)

S5 TFSI quattro S tronic $12,850CT5-V V-Series RWD ✓ $12,389Cheaper by CT5-V by $461

Loan rate

S5 TFSI quattro S tronic 6.5%CT5-V V-Series RWD 6.5%Cheaper by —

Loan interest

S5 TFSI quattro S tronic $16,685CT5-V V-Series RWD ✓ $16,593Cheaper by CT5-V by $92

Lost return on your money

S5 TFSI quattro S tronic $17,006CT5-V V-Series RWD ✓ $16,921Cheaper by CT5-V by $85

Resale after 6 yrs

S5 TFSI quattro S tronic ✓ −$34,765CT5-V V-Series RWD −$31,366Cheaper by S5 by $3,399

Total

True cost

S5 TFSI quattro S tronic ✓ $133,605CT5-V V-Series RWD $137,858Cheaper by S5 by $4,253

True cost a month

S5 TFSI quattro S tronic ✓ $1,856/moCT5-V V-Series RWD $1,915/moCheaper by S5 by $59

You pay each month

S5 TFSI quattro S tronic ✓ $2,033/moCT5-V V-Series RWD $2,046/moCheaper by S5 by $13

Practical

Fuel type

S5 TFSI quattro S tronic Premium gasCT5-V V-Series RWD Premium gasCheaper by —

Seats

S5 TFSI quattro S tronic 5CT5-V V-Series RWD 5Cheaper by —

Carry-ons, 2 people

S5 TFSI quattro S tronic Not publishedCT5-V V-Series RWD 3Cheaper by —

Cargo behind row 2, litres

S5 TFSI quattro S tronic Not publishedCT5-V V-Series RWD 337Cheaper by —

Length

S5 TFSI quattro S tronic —CT5-V V-Series RWD 4.92 mCheaper by —

Resale % after 6 yrs

S5 TFSI quattro S tronic ✓ 49%CT5-V V-Series RWD 44%Cheaper by —

US crash test

S5 TFSI quattro S tronic Not rated yetCT5-V V-Series RWD ✓ 5★Cheaper by —

✓ marks the better figure. Resale for both is typical for their type and brand (unless you lease). Their stickers differ by $451.