Saxdor's 400 GTO and Nimbus's T11 and T12 answer the same brief: a fast outboard 40-footer for long days at anchor and the odd weekend aboard. The T12 is now sold as the Sport Tender 42.
The bottom line
Saxdor 400 GTO
Space at anchor and shelter
A full-beam wheelhouse with a sunroof, opening side terraces, the most fuel (1,000 L) and the shallowest published draft (0.64 m, excluding engines).
Nimbus T11
Toy storage on a smaller engine package
Twin Verado V8 300s as standard, 40+ knots, a 2,500 L aft locker for toys and two double cabins.
Nimbus T12
The newest and fastest Nimbus
45+ knots with twin V10 425s available, a folding starboard balcony, a wider T-top with solar panels and an extended swim platform.
Photos side by side
Tap any photo to view full screen and swipe through.
Saxdor 400 GTO
10 photosPhotos © Saxdor Yachts, from saxdoryachts.com.
Nimbus T11
9 photosPhotos © Nimbus Boats, from nimbusboats.com.
Nimbus T12
10 photosPhotos © Nimbus Boats, from nimbusboats.com.
Why this pair
All three are 40- to 42-foot outboard walkaround day boats with two cabins and a separate head, rated for up to 12 people. The Saxdor is as long as the T11 (12.4 m), a little shorter than the T12 (12.7 m) and the widest of the three.
Specs side by side
Published by the builders. Numbers in brackets link to the source for each figure.
| Spec | Saxdor 400 GTO | Nimbus T11 | Nimbus T12 |
|---|---|---|---|
| Length overall | 12.4 m / 40.7 ft[1][2] | 12.40 m / 40 ft 7 in[3] | 12.70 m / 41 ft 7 in[4] |
| Beam | 3.55 m / 11.7 ft[1][2] | 3.46 m / 11 ft 4 in[3] | 3.46 m / 11 ft 4 in[4] |
| Draft | 0.64 m / 2.1 ft[1][2]Excluding engines | 0.9 m / 3 ft[3] | 0.9 m / 3 ft[4] |
| Max air draft | Not published[1] | 3.85 m / 12 ft 7 in[3] | 3.85 m / 12 ft 7 in[4] |
| Weight | Not published[1] | 5,600 kg / 12,345 lb[3]Listed "incl. 350hk engine", which isn't one of the listed engine options | 6,850 kg / 15,097 lb[4]With 2 × 425 hp, standard boat |
| Engines | Outboards, 700 to 850 hp[1][2]Max. 850 hp. Base package: 2 × Mercury V10 350 hp | 2 × Mercury Verado V8 300 hp (standard)[3]Options: 2 × Verado V10 400 hp or 2 × Volvo Penta D4 DPI 320 hp | 2 × Mercury Verado V8 300 hp, 2 × V10 400 hp or 2 × Volvo Penta D4 DPI 320 hp[4][5]Nimbus also says twin Mercury V10 425 hp can be fitted |
| Top speed | Approx. 35 to 45 knots[1][2]Max. speed range | 40+ knots[3]Cruising 20 to 40 knots | 45+ knots[4] |
| Fuel | 1,000 L / 264 gal[1][2]Plus 25 L / 6.6 gal diesel for the heater | 850 L / 224.5 US gal[3] | 850 L / 224.5 US gal[4] |
| Fresh water | 210 L / 55 gal[1][2] | 135 L / 36 US gal[3] | 135 L / 36 US gal[4] |
| Black / grey water | 60 L / 105 L[1]15.8 gal / 27.8 gal | 80 L / optional[3]21 US gal black water | 80 L / not published[4]21 US gal black water |
| Cabins / berths | Two cabins, separate head[2]Berths not published | 4 beds (2 + 2)[3]Fore and mid double cabins, head with shower | 4 berths (two double cabins)[4]Toilet and shower |
| Max. people | 12 (category B)[1][2] | 12[3]Design category B10, C12 | 12[4]Design category B10 / C12 |
| Toy stowage | Not published[1]Stern storage converts to a sleeping area | 2,500 L aft stowage[3]Hydraulic opening | Just over 2,500 L[4]Outboard version, hydraulic opening |
| Hull | Twin-stepped, 21° V[1][2]Vacuum-infused GRP | Air-lubricated stepped hull[3] | Air-lubricated twin-stepped hull[4] |
- Length overall
- Beam
- Draft
- Max air draft
- Weight
- Nimbus T115,600 kg / 12,345 lb[3]Listed "incl. 350hk engine", which isn't one of the listed engine options
- Engines
- Nimbus T112 × Mercury Verado V8 300 hp (standard)[3]Options: 2 × Verado V10 400 hp or 2 × Volvo Penta D4 DPI 320 hp
- Top speed
- Fuel
- Fresh water
- Black / grey water
- Cabins / berths
- Max. people
- Toy stowage
Saxdor's figures match on its model page and its 2026 brochure. Saxdor measures draft excluding engines; Nimbus doesn't say how its 0.9 m is measured, so compare the two with care. The T12 is now sold as the Sport Tender 42, and its spec list shows 2 × 400 hp while the same page and the 42-series launch say twin Mercury V10 425 hp can be fitted and quote the weight with 2 × 425 hp. Nimbus gives the T11's weight "incl. 350hk engine", which doesn't match its listed engines.
The deck at anchor
- 400 GTO: the full-beam wheelhouse opens onto side terraces that fold out at anchor. The rear sofa pulls out into a sunbed.
- T12: a folding starboard balcony opens the lounge over the water.
- T11: no balcony; three sofas convert to a lounge or a big sunpad.
Shelter vs open air
- 400 GTO: the most sheltered: a roofed wheelhouse with a push-button sunroof and weather enclosures.
- T12: a longer, wider T-top with solar panels and see-through acrylic sections.
- T11: a T-top over much of the deck and three forward-facing helm seats.
Galley, toys and swimming
- 400 GTO: a cockpit fridge, a stern grill with a sink, and stern storage that converts into a sleeping area.
- T11 and T12: an outdoor galley with a hot-water sink and room for a grill, 70 + 70 + 85 L of fridges and a 2,500 L hydraulic aft locker for paddleboards or seabobs.
- T12: an extended swim platform, hydraulic as an option.
Below deck
- 400 GTO: two cabins and a separate head. Saxdor doesn't publish a berth count.
- T11 and T12: a double in the forward cabin and another in the mid cabin, sleeping four, with a separate head and shower (standing height on the T12). A foredeck hatch loads gear straight into the forward cabin.
Performance
- 400 GTO: twin-stepped 21° V hull, 700 to 850 hp of outboards, approx. 35 to 45 knots and the biggest tank (1,000 L).
- T11: air-lubricated stepped hull, twin 300 hp Verados as standard, 40+ knots and a 20 to 40 knot cruising range. Volvo Penta D4 diesels are an option.
- T12: air-lubricated twin-stepped hull and 45+ knots, with twin V10 425s available.
Ownership and resale
- Draft: all three are published at 0.9 m or less; check the real figure with the engines down.
- Engine hours: compare the hours on each outboard and ask for the service records. Outboards are simple to service but should show similar hours.
- Names: a T12 may be listed as a Sport Tender 42, so search both.
- Resale: Nimbus dates from 1968, Saxdor from 2019, so there's less Saxdor resale history. Condition, engines and service records matter most.
Browse Saxdor and Nimbus listings, or ask me about boats not yet listed.
Common questions
›Is the Nimbus T12 the same boat as the Sport Tender 42?
Yes. Nimbus renamed its 12-metre range in 2026, and the T12 is now sold as the Sport Tender 42.
›Is the Saxdor 400 GTO bigger than the Nimbus T11?
They're the same length, 12.4 m. The Saxdor is wider (3.55 m vs 3.46 m) and carries more fuel (1,000 L vs 850 L).
›What engines does the Saxdor 400 GTO take?
Twin outboards from 700 to 850 hp, according to Saxdor. Its base package is 2 × Mercury V10 350 hp.
Specifications are as published by Saxdor and Nimbus at the time of writing and can change between model years and options. Always confirm the specification of a particular yacht during survey and sea trial. New-boat pricing isn't shown here; ask me for current figures on any model.
Sources
- Saxdor Yachts: Saxdor 400 GTO (model page and specifications)
- Saxdor Yachts: 400 GTO brochure, 2026 (PDF)
- Nimbus Boats: Tender 11 (model page and technical specifications)
- Nimbus Boats: Sport Tender 42, formerly T12 (model page and technical specifications)
- Nimbus Boats: Introducing the Sport Cruiser 42 series
- Nimbus Group: New, heritage-inspired product naming for the Nimbus range
