Mercedes-Benz AMG® GT or SL: which fits Manchester, NH drivers?
Choose the AMG® GT if you want a fixed-roof sports coupe, and the SL-Class Roadster if you want open-air driving. Both are sold new at our Gold Street store in Manchester.
The two lines produce the same power at each matched trim, so the choice comes down to roof, cargo and price. Start with how each car is built, then compare what it costs to own and drive.
Keep reading below, then schedule a test drive in Manchester. Bringing your own numbers to the lot settles this faster than any spec sheet.
In Manchester, NH, pick the AMG® GT for a coupe, the SL for open air
The AMG® GT Coupes in the 55, 63 and 63 S E PERFORMANCE trims seat two, with four seats optional. The SL-Class Roadster is the open-top model, so it is the pick when open-air driving comes first. For a Manchester driver, the question is how the car will be used. A driver who wants one car for errands, commuting and weekend trips gets a fixed roof from the AMG® GT line. A driver who mostly wants the top down picks the SL, sold new at 875 Gold St, Manchester, NH 03103.
In a September 2026 Google review, Laura M. wrote: “It took me awhile to decide on the model that is best for me. But the team was gracious and patient, in the end I found exactly the fit for me. Thank you Mercedes!” Laura M. describes taking time to choose, then finding the right model.
What do the AMG® GT and SL-Class Roadster cost in Manchester, NH?
The AMG® GT 43 Coupe lists at $106,500, the 55 Coupe at $137,450, the 63 Coupe at $184,000, and the 63 S E PERFORMANCE Coupe at $202,200. The SL-Class starts with the SL 43 Roadster, and the SL 55 and SL 63 Roadsters list at $145,250 and $187,850. These are Mercedes-Benz USA’s 2026 model-year prices.
New Hampshire has no general sales tax on a vehicle purchase. The state says, “No, there is no general sales tax on goods purchased in New Hampshire.” (New Hampshire Department of Revenue Administration, 2026) The statute says the same thing: New Hampshire does not impose a sales tax on purchases of goods and services made in the state (New Hampshire General Court, RSA 78-D:1).
In a July 2025 Google review, Brent L. wrote: “Bought a c300 off Cris a while back. We negotiated to a price we were both happy with and the car’s been doing me good ever since!!” Brent L. describes negotiating a price that both sides were happy with.
How much power do the AMG® GT and SL-Class Roadster make?
The AMG® GT and SL-Class Roadster make the same power at each matched trim: 416 hp at the 43, 469 hp at the 55 and 577 hp at the 63. Torque matches as well, at 369, 516 and 590 lb-ft (Mercedes-Benz USA, 2026).
The AMG® GT 63 S E PERFORMANCE Coupe sits above that, rated at 805 hp and 1,047 lb-ft of torque. Power does not decide between the two lines. Body style does.
What EPA fuel economy do the AMG® GT and SL-Class Roadster rate?
The AMG® GT 43 Coupe and SL 43 Roadster are both EPA rated at 19 city, 27 highway and 22 combined mpg, as rear-wheel-drive hybrids. The 55 and 63 trims are gasoline all-wheel-drive cars. The AMG® GT 55 4matic Plus Coupe and 63 4matic Plus Coupe are rated 14 city, 20 highway and 16 combined. The SL55 and SL 63 4matic Plus are rated 14 city, 21 highway and 16 combined (EPA, 2026).
If you drive a lot, the 43 trims carry the higher combined rating, at 22 mpg against 16 for the 55 and 63 trims. Set those numbers beside the price and the power, and the 43 is the economy pick on either line.
What drivetrain and warranty come with the AMG® GT and SL-Class Roadster?
Both lines offer 4MATIC®+ all-wheel drive, and both carry a basic warranty of 4 years or 50,000 miles (Mercedes-Benz USA, 2026). The AMG® GT 55 and 63 Coupes and the SL55 and SL 63 Roadsters carry 4MATIC®+. The AMG® GT 43 Coupe and SL 43 Roadster are rear-wheel drive in the EPA record.
The drive system is a trim choice on both lines. It is not a reason to pick one line over the other.
What are the AMG® GT and SL-Class Roadster’s MSRP, power, seats and cargo?
Matched trims differ on price and cargo, not on power, so those are the numbers that separate the two lines. Mercedes-Benz USA’s 2026 figures for each trim are below.
| Model | Starting MSRP | Horsepower | Max cargo |
|---|---|---|---|
| AMG® GT 43 Coupe | $106,500 | 416 hp | 23.8 cu ft |
| AMG® GT 55 Coupe | $137,450 | 469 hp | 11.3 cu ft |
| AMG® GT 63 Coupe | $184,000 | 577 hp | 11.3 cu ft |
| SL 43 Roadster | Entry SL trim | 416 hp | 7.5 cu ft |
| SL 55 Roadster | $145,250 | 469 hp | 7.5 cu ft |
| SL 63 Roadster | $187,850 | 577 hp | 7.5 cu ft |
At every matched trim, the SL costs more and the GT Coupe carries more cargo.
Who should skip the AMG® GT, and who should skip the SL-Class Roadster?
A buyer who wants open air should skip the fixed-roof AMG® GT, and anyone after a coupe should skip the SL-Class Roadster. The 43, 55 and 63 Coupes carry more cargo than the SL Roadsters, at 23.8 cu ft on the 43 and 11.3 on the 55 and 63, against 7.5 cu ft on each SL. The GT Coupes also give the front row 42.7 inches of legroom, against 41.5 inches in the SL (Mercedes-Benz USA, 2026).
A buyer who needs the most room under the roof and in the trunk should choose the coupe. A buyer who wants the top down should choose the roadster.
Frequently asked questions
What does New Hampshire charge to register a new Mercedes-Benz?
New Hampshire charges no sales tax on the purchase, but registration carries fees. The state share for a vehicle weighing 3,001 to 5,000 lbs is $48, or $4.00 a month, prorated by the month of the owner’s birthday (New Hampshire Revised Statutes Annotated, RSA 261:141, III(g), 2026). Your town or city adds a permit fee set at 18 mills on the maker’s list price for a current model year vehicle (New Hampshire Revised Statutes Annotated, RSA 261:153, I, 2026). The DMV adds an $8.00 plate fee the first time you order plates (New Hampshire Division of Motor Vehicles, 2026).
Can I buy an AMG® GT or SL online and have it delivered to Manchester?
Yes. The AcceleRide® online car buying tool lets you buy a new or pre-owned vehicle online. Buyers who use AcceleRide® can also get their current vehicle appraised for trade-in, with pickup at delivery.
Can I trade in my current car when I buy an AMG® GT or SL?
Yes. We contact you with our offer on your trade-in, and we charge no additional fees on that offer. A final inspection is required to complete the transaction. Buyers who use AcceleRide® can also get the current vehicle appraised for trade-in, with pickup at delivery.
How do I apply for financing on an AMG® GT or SL before I visit?
We offer a secure online finance application, so you can start your financing before you visit. Use it for the model you have picked, and bring that model’s name with you when you come in.
How do I book service for an AMG® GT or SL in Manchester?
A service appointment can be scheduled online, in person or by phone at 875 Gold St, Manchester, NH 03103. The service department is open weekdays from 7:00 AM to 5:00 PM and Saturdays from 7:00 AM to 4:00 PM, and it is closed Sunday. Parts hours match the service hours.
Can I order parts for my AMG® GT or SL and have them installed?
Yes. Use the online order form to request parts, and we call you once they arrive. We can also install parts we order, including through an “Installation?” box on the online order form.
Which AMG® GT and SL trims does Mercedes-Benz publish?
The 2026 AMG® GT Coupe lineup includes the 43, 55, 63 and 63 S E PERFORMANCE. The 2026 SL-Class Roadster lineup includes the SL 43, SL 55 and SL 63 (Mercedes-Benz USA, 2026). The AMG® GT 63 S E PERFORMANCE Coupe is rated at 805 hp and 1,047 lb-ft of torque.
Where is the Manchester Mercedes-Benz store and how far is it from nearby cities?
Mercedes-Benz of Manchester is at 875 Gold St, Manchester, NH 03103. Sales hours are Monday to Thursday 9:00 AM to 7:00 PM, Friday and Saturday from 9:00 AM until 6:00 PM, and closed Sunday.
Why shop the AMG® GT and SL-Class Roadster at Mercedes-Benz of Manchester?
We sell both models new at 875 Gold St, Manchester, NH 03103. We hold 4.6 stars across 2,251 Google reviews, and 84% of them are five-star (Google, 2026).
In an April 2024 5-star Google review, Kelvin S. wrote: “Great service, Patience and very knowledgeable.” In a June 2026 Google review, Stephen L. wrote: “Can’t say enough good things about Kara and my buying experience. Thank you”
A buyer who has narrowed the choice here can get both lines, the trade-in and finance steps, and service from one store. To start, pick the AMG® GT or the SL-Class Roadster that fits your roof and cargo needs, then contact Mercedes-Benz of Manchester at 875 Gold St, Manchester, NH 03103.
Mercedes-Benz of Manchester answers this question against the specific vehicle in front of you rather than the model in general. Value your trade and get pre-approved online, then see us at our Manchester showroom, or call 603-792-2460.
Disclaimer: Vehicle features, specifications, pricing, options, and availability may vary based on production timelines and dealership inventory; images are for illustrative purposes only. Starting MSRP figures are national and exclude destination freight charges, tax, title, license, and dealer fees. Standard and available equipment varies by trim, configuration, and model year; confirm the specification of the individual vehicle before purchase. Maximum towing and payload ratings depend on cab, bed, drivetrain, and equipment configuration; see the vehicle’s Owner’s Manual and trailering guide for limits. Electric range and charging times vary with battery, configuration, temperature, terrain, load, and driving habits. Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Financing and pre-approval are subject to credit approval. Contact Mercedes-Benz of Manchester for complete details regarding current vehicle inventory, pricing, and equipment.
